Gu Chang'an

Biodata

Feature	Detail
Name	Gu Chang'an 1 15
Age	16 15, 21 143
Origin	Guangyuan Town 15
Identity	Woodcutter (Refugee) 1, Farmer (Commoner) 4, Hunter (Commoner) 6, Martial Artist (Minor Official) 15 27, Constable (Minor Official) 22 38 49, Head Constable (Official) 59 60 125 146
Realm	None 1 4 6, Ninth Rank 15 18 22 27 38, Eighth Rank 49 89, Seventh Rank 90 112, Sixth Rank 125 128 146 165
Constitution	19 (+1/day) 1, 42 (+1/day) 3, 42 (+2/day) 4, 111 (+2/day) 6, 148 (+4/day) 15, 222 (+4/day) 22, 352 (+4/day) 27, 400 (+4/day) 38, 525 (+4/day) 49, 550 (+6/day) 60, 608 (+6/day) 64, 808 (+6/day) 89, 947 (+6/day) 90, 2,068 (+6/day) 112, 8,025 (+6/day) 125, 8,988 (+6/day) 128, 9,321 (+6/day) 146, 9,125 (+6/day) 165
Lifespan	1 year 10 months 1, 1 year 5 months 3 4, 53 years 4 months 6, 54 years 4 months 15, 55 years 3 months 22, 30 years 3 months 27, 22 years 3 months 38, 23 years 3 months 49, 24 years 3 months 64, 2 years 3 months 89, 35 years 5 months 112, 12 years 6 months 125, 25 years 6 months 146, 18 years 1 month 165
Master	Li Tianfeng 9 15
Senior Sister	Li Hongye 9 11
Constable Number	Fugitive Apprehension · Ding Three One Four 15
Household	Purchased a four-bedroom courtyard with a garden 50
Known Associates	Wang Xiaojuan (adopted daughter/ward) 23 45, Chen Qi (Demon Slayer Squad deputy captain) 60, Mei Sanniang (herb-gathering team commander) 133 161, Jiang Xuan and Jiang Xiaoyu 270 274

Background

Gu Chang'an began his life in this world as a refugee in Nanning County, having transmigrated into the body of an original owner whose family had succumbed to famine 1. Initially, he survived by cutting wood, enduring harsh conditions and the exploitation of groups like the Firewood Gang 1. He lived in dilapidated temples or abandoned ancestral halls, constantly vigilant against threats from refugees and beggars who coveted his meager earnings 1 3.

His primary early goal was to earn enough money for household registration, which would elevate his status from “refugee” to “commoner” and improve his daily Constitution increase 3 4. After accumulating sufficient funds, partly through money taken from a dead bandit, he waited for suspicion over several deaths to fade before registering as a commoner in Nanning County 3 4. He received one mu of wasteland to cultivate and pay taxes on 3. This change in status also meant he was no longer a woodcutter but a farmer, though he later became a hunter after killing Zhang Qiang of the Firewood Gang 4 6.

His refugee background and subsequent experiences shaped his determination to become stronger and improve his circumstances 1 3. He eventually became a disciple at Sky Wind Martial Hall under Li Tianfeng and later joined the Nanning County Martial Guard Division as a constable, gaining the status of a Minor Official and an increased daily Constitution gain 9 14 15 27. Though his past as a refugee was known, he steadily established himself through merit, advancing to Head Constable and forming the Demon Slayer Squad to investigate demons, Blood Pills, and heretical cults 45 50 59 60.

Following severe injuries and an illness connected to his rapid cultivation, Li Tianfeng sought treatment in Guangling Commandery City and successfully invited Xiao Yayun, a direct disciple of Medicine King Valley, to treat him 91 110 111. Xiao Yayun's medicines restored and strengthened Gu Chang'an's qi and blood, while her alchemy inheritance opened a new path for him 110 112. After reaching Sixth Rank, he took an extended leave from the Martial Guard Division to travel, temper himself, seek spiritual materials, and investigate dangers surrounding Anxia Mountain and Southern Ridge 125 127 128 216.

Physical Description

Gu Chang'an is described as having a sturdy physique with a broad back and wide shoulders, a significant change from his earlier appearance as a thin refugee 7 10. His movements are steady and purposeful, carrying a subtle air of pressure 7. He has well-defined muscles and skin with a faint bronze sheen, along with a few shallow old scars on his chest and abdomen 10.

As his cultivation advances, his blood energy becomes extraordinarily dense, his aura increasingly difficult for other martial artists to assess, and his presence capable of intimidating enemies without direct action 137 147 176 236. Despite being injured at times, he can still strike with thunderous force and project the authority of the Martial Guard Division 94.

Specific details include:

• Attire: He is often seen in clean, crisp gray-blue short outfits with sleeves tightly bound and a dark brown leather belt cinched at his waist 7. He also wears a clean blue cloth martial uniform 9. When on duty as a constable, he is equipped with a standard set of armor, a black uniform, a belt, arm guards, and leg guards 15. During his travels, he often wears plain gray or dark clothing to avoid attention 139 147.
• Weapons: He carries a plain long saber with an old, dull but meticulously tidy scabbard 7. His preferred weapon is a long saber 15. While gathering herbs and operating alone in Anxia Mountain, he also uses a worn, broken saber with a slightly curved spine 169.
• Footwear: He wears beast-hide boots 7.
• Constitution: His Constitution has significantly increased over time, from 42 points as a refugee 3, to 111 as a hunter 6, 148 as a minor official 15, 352 after medicinal baths 27, 525 after breaking through to Eighth Rank 49, 947 upon reaching Seventh Rank 90, 2,068 after Xiao Yayun's treatment 112, 8,025 after reaching Sixth Rank 125, and over 9,000 during his Anxia Mountain expedition 146 165.

Personality

Gu Chang'an is characterized by determination, ambition, and a strong sense of justice 14 16 21. He is eager to improve his martial arts skills, prioritizing personal growth and strength to protect himself and others 8 22 28 48. Despite his refugee background, he demonstrates wisdom and caution, carefully weighing risks and benefits 8. He is courageous and resolute, refusing to back down from threats and maintaining a calm demeanor under pressure 4 15 16 21.

Gu Chang'an also shows compassion and kindness, particularly toward neighbors, children, and ordinary people imperiled by violence 7 23 131 137. He is grateful for guidance and support, values loyalty and camaraderie, and remains respectful toward his master and senior sister 12 19 21. While generally humble and restrained, he possesses a clear sense of right and wrong and is willing to act against injustice 14 21.

His experiences in Anxia Mountain further reveal his ruthlessness toward enemies who seek his life. He believes that mercy toward determined killers can endanger himself and his companions, and he does not hesitate to kill hostile assassins or conspirators 161 167 171 176. Nevertheless, he rejects dependence on empty protection and instead prefers practical cooperation built upon mutual interests and demonstrated trust 161. His calmness, self-control, and ability to conceal his true depth repeatedly lead others to underestimate him 137 139 147 177.

Power Progression

Stage	Constitution	Techniques	Notes
Refugee (Initial)	19 (+1/day) 1	Iron Cutting Saber Technique (Yellow Grade Low Rank, Beginner/+) 1	Gu Chang'an is a transmigrator in a famine-stricken world, learning about martial artist realms and discovering his System 1.
Refugee (After 5 months lifespan consumption)	22 (+1/day) 1	Iron Cutting Saber Technique (Yellow Grade Low Rank, Initial Mastery/+) 1	Consumed 5 months of lifespan to upgrade his saber technique 1.
Farmer (Commoner)	42 (+2/day) 4	Iron Cutting Saber Technique (Yellow Grade Low Rank, Initial Mastery/+) 4	Registered as a commoner, daily Constitution increase doubled 4.
Hunter (Commoner)	111 (+2/day) 6	Iron Cutting Saber Technique (Yellow Grade Low Rank, Initial Mastery/+), Iron Cloth Shirt (Yellow Grade Low Rank, Initial Mastery/+), Flowing Wind Steps (Yellow Grade Low Rank, Initial Mastery/+), Demonuntain Shattering Fist (Yellow Grade Low Rank, Beginner/+), Archery (Demonrtal Grade, Initial Mastery/+) 6	Became a hunter after killing Zhang Qiang; learned new techniques at Sky Wind Martial Hall; Constitution broke 100 6.
Ninth Rank Martial Artist (Apprenticeship)	148 (+4/day) 15	Iron Cutting Saber Technique (Yellow Grade Low Rank, Initial Mastery/+), Complete Iron Cloth Shirt (Yellow Grade High Rank, Initial Mastery/+), Flowing Wind Steps (Yellow Grade Low Rank, Initial Mastery/+), Demonuntain Shattering Fist (Yellow Grade Low Rank, Beginner/+), Archery (Demonrtal Grade, Initial Mastery/+) 15	Became a personal disciple of Li Tianfeng and a constable, gaining a status upgrade to “Minor Official” 9 15. Reached Ninth Rank in half a year 12.
Ninth Rank Martial Artist (After 20 years lifespan consumption)	222 (+4/day) 22	Demonuntain Shattering Saber Technique (Yellow Grade Mid Rank, Initial Mastery/+), Green Lotus Poison Scripture (Yellow Grade, Initial Mastery/+), Iron Cutting Saber Technique (Yellow Grade Low Rank, Proficient), Complete Iron Cloth Shirt (Yellow Grade High Rank, Initial Mastery/+), Flowing Wind Steps (Yellow Grade Low Rank, Initial Mastery/+), Demonuntain Shattering Fist (Yellow Grade Low Rank, Beginner/+), Archery (Demonrtal Grade, Initial Mastery/+) 22	Consumed 20 years of lifespan to upgrade skills 22.
Ninth Rank Martial Artist (After Body Tempering Pill)	329 (+4/day) 22	Demonuntain Shattering Saber Technique (Yellow Grade Mid Rank, Proficient/+), Green Lotus Poison Scripture (Yellow Grade, Proficient/+), Iron Cutting Saber Technique (Yellow Grade Low Rank, Mastered), Complete Iron Cloth Shirt (Yellow Grade High Rank, Mastered/+), Flowing Wind Steps (Yellow Grade Low Rank, Proficient/+), Demonuntain Shattering Fist (Yellow Grade Low Rank, Proficient/+), Archery (Demonrtal Grade, Proficient/+) 22	Constitution reached 329, stronger than an ordinary Eighth Rank martial artist 22.
Ninth Rank Martial Artist (After medicinal bath)	352 (+4/day) 27	Demonuntain Shattering Saber Technique (Yellow Grade Middle Rank, Proficient/+), Green Lotus Poison Scripture (Yellow Grade, Proficient/+), Iron Cutting Saber Technique (Yellow Grade Low Rank, Mastered), Complete Iron Cloth Shirt (Yellow Grade High Rank, Mastered/+), Flowing Wind Steps (Yellow Grade Low Rank, Proficient/+), Demonuntain Shattering Fist (Yellow Grade Low Rank, Proficient/+), Archery (Demonrtal Grade, Proficient/+) 27	Significant boost to cultivation due to Body Tempering Pill and medicinal baths 27.
Ninth Rank Martial Artist (After consuming lifespan)	400 (+4/day) 38	Demonuntain Shattering Saber Technique (Yellow Grade Mid Rank, Proficient/+), Green Lotus Poison Scripture (Yellow Grade, Adept/+), Iron Cutting Saber Technique (Yellow Grade Low Rank, Proficient), Complete Iron Cloth Shirt (Yellow Grade High Rank, Proficient/+), Flowing Wind Steps (Yellow Grade Low Rank, Peak Mastery), Demonuntain Shattering Fist (Yellow Grade Low Rank, Adept/+), Archery (Demonrtal Grade, Adept/+) 38	Upgraded skills by consuming lifespan, increasing Constitution to 400 38.
Eighth Rank Martial Artist	525 (+4/day) 49	Demonuntain Shattering Saber Technique (Yellow Grade Mid Rank, Proficient/+), Green Lotus Poison Scripture (Yellow Grade, Adept/+), Iron Cutting Saber Technique (Yellow Grade Low Rank, Proficient), Complete Iron Cloth Shirt (Yellow Grade High Rank, Proficient/+), Flowing Wind Steps (Yellow Grade Low Rank, Mastered), Demonuntain Shattering Fist (Yellow Grade Low Rank, Adept/+), Archery (Demonrtal Grade, Adept/+) 49	Successfully broke through to Eighth Rank after five days of seclusion 49. Constitution is close to a late-stage Eighth Rank martial artist 49.
Head Constable (Official)	550 (+6/day) 60	Wind-Thunder Slash (Mysterious Grade Low Rank, Incomplete, Beginner/+), Gale Blade Technique (Yellow Grade High Rank, Initial Mastery/+), Gale Body Technique (Yellow Grade High Rank, Initial Mastery/+), prior techniques 60	Promoted to Head Constable and gains Official status, raising daily Constitution growth from 4 to 6 points 59 60.
Eighth Rank Martial Artist (Strengthened)	808 (+6/day) 89	Wind-Thunder Slash (Mysterious Grade Low Rank, Incomplete, Mastered), Gale Blade Technique (Yellow Grade High Rank, Proficient/+), Gale Body Technique (Yellow Grade High Rank, Mastered), Mountain Shattering Saber Technique (Yellow Grade Mid Rank, Mastered), Complete Iron Cloth Shirt (Yellow Grade High Rank, Mastered/+) 89	His rapid advancement leaves him with only two years and three months of lifespan, compelling him to seek treatment and restrain further expenditure 89.
Seventh Rank Martial Artist	947 (+6/day) 90	Wind-Thunder Slash (Mysterious Grade Low Rank, Incomplete, Proficient), Gale Blade Technique (Yellow Grade High Rank, Proficient), Gale Body Technique (Yellow Grade High Rank, Proficient) 90	Broke through to Seventh Rank during medicinal cultivation 90.
Seventh Rank Martial Artist (Medicine King Valley treatment)	2,068 (+6/day) 112	Crimson Spirit True Fire Alchemy Technique—Lower Volume (Earth Grade Low Rank, Beginner), Crimson Spirit True Fire Alchemy Technique—Upper Volume (Mysterious Grade Low Rank, Initial Mastery/+), Wind-Thunder Slash (Mysterious Grade Low Rank, Fragmentary, Mastered/+) 112	Xiao Yayun's treatment restores his lifespan and Constitution while granting him an alchemy inheritance 110 112.
Sixth Rank Martial Artist	8,025 (+6/day) 125	Crimson Spirit True Fire Alchemy Technique—Lower Volume (Earth Grade Low Rank, Beginner), Crimson Spirit True Fire Alchemy Technique—Upper Volume (Mysterious Grade Low Rank, Mastered), Wind-Thunder Slash (Mysterious Grade Low Rank, Incomplete, Mastered), Unbreakable Golden Body (Mysterious Grade High Rank, Proficient/+) 125	Broke through to Sixth Rank and began producing Spirit Energy from his dantian 125.
Sixth Rank Martial Artist (Anxia Mountain expedition)	9,321 (+6/day) 146	Crimson Spirit True Fire Alchemy Technique—Lower Volume (Earth Grade Low Rank, Proficient/+), Crimson Spirit True Fire Alchemy Technique—Upper Volume (Mysterious Grade Low Rank, Pinnacle), Wind-Thunder Slash (Mysterious Grade Low Rank, Fragmented, Pinnacle), Unbreakable Golden Body (Mysterious Grade High Rank, Proficient/+) 146	His alchemy, body tempering, and martial strength make him a major force among Anxia Mountain's cultivators and gathering teams 143 146 152.
Sixth Rank Martial Artist (After reverse devouring)	9,125 (+6/day) 165	Crimson Spirit True Fire Alchemy Technique—Lower Volume (Earth Grade Low Rank, Beginner), Crimson Spirit True Fire Alchemy Technique—Upper Volume (Mysterious Grade Low Rank, Peak), Wind-Thunder Slash (Mysterious Grade Low Rank, Fragmentary, Peak), Unbreakable Golden Body (Mysterious Grade High Rank, Proficient/+) 165	His Constitution remains above 9,000 despite the lifespan cost incurred during the crisis 165.

Abilities

Martial Arts Ranks

Martial artists in this world are divided into the Houtian Realm and the Xiantian Realm. The Houtian Realm has nine ranks, with Ninth Rank being the lowest and First Rank the highest 1. Gu Chang'an achieved Ninth Rank in approximately half a year, a rapid progression compared to Li Hongye, who took nearly three years 12.

He later advanced through Eighth and Seventh Rank before reaching Sixth Rank, at which point he developed Spirit Energy in his dantian and could sense and draw upon the ambient spiritual energy of heaven and earth 49 90 125.

• Applications:
  • Reaching Ninth Rank signifies a significant increase in combat prowess, allowing Gu Chang'an to contend with skilled opponents like Lu Kai 12.
  • At Sixth Rank, he can contend with Demonic Beasts, assassins, and opponents who regard his blade techniques as comparable to those of an established Sixth Rank martial artist 137 152 167.
  • His advancement enables the cultivation of alchemy and body-refining methods involving Spirit Energy 112 125.
• Limitations:
  • Even as a Sixth Rank martial artist, Gu Chang'an faces threats from stronger hidden forces, demon-related phenomena, and organized assassins 176 177 205 216.
  • Rapid growth and System-assisted upgrades can consume dangerous amounts of lifespan 38 89 165.

Iron Cutting Saber Technique

The Iron Cutting Saber Technique is a Yellow Grade Low Rank cultivation technique 6. Gu Chang'an initially learned this technique as a beginner 1 and later achieved initial mastery 6. He eventually mastered it 27.

• Applications:
  • Used effectively against a wild boar, piercing its shoulder and neck 7.
  • Allowed Gu Chang'an to fight Lu Kai to a standstill, forcing him to retreat and inflicting wounds 12.
  • Demonstrates ruthless and efficient technique, capable of disarming an opponent in one move 16.
• Limitations:
  • Progress was initially slow 6.
  • Described as a “woodcutter's saber” technique, implying a basic or fundamental style 12.

Iron Cloth Shirt

The Iron Cloth Shirt is a Yellow Grade Low Rank cultivation technique that Gu Chang'an learned at Sky Wind Martial Hall 6. He achieved initial mastery after a month of arduous training 6. Li Tianfeng later revealed the complete Yellow Grade High Rank version of the technique, which requires medicinal support for body tempering 10 15. Gu Chang'an achieved initial mastery of the complete technique 15 and later mastered it 27.

• Applications:
  • Used for body tempering, making the physique sturdier and skin bronze-like 10.
  • Helps resist medicinal power during tempering, with blood energy erupting from pores and being reabsorbed 10.
  • Contributes to a significant increase in Constitution 27.
• Limitations:
  • Requires medicinal support for effective body tempering 10.
  • The tempering process is intense and painful, feeling like fire needles piercing bones 10.

Unbreakable Golden Body

Unbreakable Golden Body is a Mysterious Grade High Rank body-refining technique possessed by Gu Chang'an after his later advancement 125. It supports continued strengthening beyond the limits of his earlier Iron Cloth Shirt cultivation.

• Applications:
  • Enhances his qi, blood, body tempering, and physical resilience 125 127.
  • Assisted Li Hongye's progress toward Sixth Rank through improved qi and blood cultivation 127.
• Limitations:
  • Requires substantial cultivation resources, Spirit Pills, and sustained body tempering to develop 125 127.

Flowing Wind Steps and Gale Body Technique

Flowing Wind Steps is a Yellow Grade Low Rank movement technique learned at Sky Wind Martial Hall 6. Gu Chang'an achieved initial mastery after a month of arduous training 6, later became proficient 27, and reached mastery by his Eighth Rank breakthrough 49. His later Gale Body Technique is a Yellow Grade High Rank movement technique that rapidly reached mastery due to his existing foundation 60 89.

• Applications:
  • Allows agile movement, enabling Gu Chang'an to dodge a wild boar's charge 7.
  • Used for evasion, such as escaping Lu Tian's attacks 26.
  • Essential for evading powerful berserk opponents like Liang Hu in his mad demon state 37 41.
  • Lets him evade the Bronze Armored Puppet Corpse's attacks while identifying its combat rhythm 120.
  • Supports his later ability to fight multiple assassins in mountain terrain 167 176 177.
• Limitations:
  • Movement techniques improve positioning and survival but cannot alone overcome overwhelming enemy strength or large-scale traps 176 177.

Demonuntain Shattering Fist

Demonuntain Shattering Fist is a Yellow Grade Low Rank cultivation technique learned at Sky Wind Martial Hall 6. It was initially at the beginner stage 6 but later became proficient 27 and adept 38.

• Applications:
  • Contributes to overall combat prowess and close-range striking power 6 38.
  • Gu Chang'an later practices fist techniques with exceptional force and steadiness in the Green Sun Bamboo Forest 270.
• Limitations:
  • Initially progressed more slowly than his defensive and movement techniques 6.

Archery

Archery is a Mortal Grade technique 6. Gu Chang'an achieved initial mastery 6, later became proficient 27, and adept 38.

• Applications:
  • Contributes to his hunting and overall combat capability 6.
• Limitations:
  • It is a comparatively basic skill beside his increasingly advanced saber, movement, body-refining, and alchemy techniques 6 60.

Demonuntain Shattering Saber Technique

The Demonuntain Shattering Saber Technique is a Yellow Grade Mid Rank technique 27. Gu Chang'an learned this technique and achieved proficiency 27 38, later mastering it 89.

• Applications:
  • Combines ferocity with agility when used with Flowing Wind Steps 26.
  • Allows powerful strikes described as “saber light like thunder” 26.
  • The “Demonuntain Shattering · Peak Break” move gathers all strength for a powerful downward slash 26.
  • Capable of delivering a “Demonuntain Severing Slash” to gravely wound powerful opponents such as Zhang Yuying 31.
  • Used to block heavy blows from powerful opponents such as Liang Hu 36.
• Limitations:
  • Requires significant strength and focus to execute powerful moves 26.

Wind-Thunder Slash

Wind-Thunder Slash is a fragmentary Mysterious Grade Low Rank saber technique acquired after Gu Chang'an became Head Constable 60. Its depth meant that he initially only reached Beginner despite his other saber foundations, but it later progressed to Mastered and then Peak Mastery 60 89 125 146.

• Applications:
  • Provides a higher-level saber foundation that allows Gu Chang'an to unleash exceptionally rapid, lethal strikes 120 137 152.
  • Supports his ability to kill powerful Demonic Beasts and assassins with a single decisive slash 152 167.
• Limitations:
  • As an incomplete or fragmented technique, its full potential remains unavailable 60 89 125.

Gale Blade Technique

Gale Blade Technique is a Yellow Grade High Rank saber technique learned after Gu Chang'an became Head Constable 60. Because of his earlier saber proficiency, he achieved initial mastery in only two days and later reached mastery 60 89.

• Applications:
  • Enhances the speed and fluidity of his saber attacks 60.
  • Combines with Gale Body Technique to create attacks that observers struggle to follow 120 137.
• Limitations:
  • Its advancement depends on a sufficient foundation in saber technique and movement techniques 60.

Green Lotus Poison Scripture

The Green Lotus Poison Scripture is a Yellow Grade technique 27. Gu Chang'an achieved proficiency 27 and later became adept 38.

• Applications:
  • Contributes to his overall combat capability and knowledge of poison-related methods 27 38.
• Limitations:
  • Specific combat applications have not been fully detailed in the available context.

Crimson Spirit True Fire Alchemy Technique

The Crimson Spirit True Fire Alchemy Technique comprises a Lower Volume of Earth Grade Low Rank and an Upper Volume of Mysterious Grade Low Rank 112. Xiao Yayun left Gu Chang'an the inheritance after treating him, allowing him to enter alchemy cultivation 112.

• Applications:
  • Enables Gu Chang'an to become a Third Tier Alchemist and refine high-quality medicinal pills 143.
  • He refined ten top-grade Marrow Cleansing Pills with only one imperfect product 145.
  • Allows him to purchase, identify, and utilize rare Spirit Materials for further cultivation 145 146.
• Limitations:
  • Requires costly Spirit Materials and mastery of pill refinement 145.
  • His skill attracts the attention of commercial organizations and powerful local figures 145.

Constitution Enhancement

Gu Chang'an's Constitution can be enhanced through arduous training, medicinal baths, Body Tempering Pills, Spirit Pills, alchemy, System-assisted lifespan consumption, and breakthroughs in realm 6 27 38 90 110 125. His Constitution increased from 19 1 to over 9,000 after reaching Sixth Rank 146 165.

• Applications:
  • A higher Constitution directly increases lifespan and physical resilience 6.
  • Provides the strength to withstand powerful attacks and contend with higher-ranked opponents 36 87.
  • Supports the use of advanced body-refining and spiritual cultivation techniques 112 125.
• Limitations:
  • Spending lifespan can leave him critically short-lived despite extreme gains in combat power 38 89.
  • Recovery from injuries and abnormal conditions requires rare medicines and expert treatment 91 110 111.

Strategic Thinking

Gu Chang'an consistently demonstrates strategic thinking in combat, investigation, leadership, and survival planning 32 34 38 41 60.

• Applications:
  • Recognizes the need to avoid direct confrontation with powerful berserk enemies and uses movement techniques to restrain or lure them 26 38 41.
  • Leads teams effectively, including discovering the true Firewood Gang camp and organizing the Demon Slayer Squad 34 60.
  • Studies the backgrounds, strengths, and roles of subordinates before relying on them in dangerous investigations 60.
  • Exploits the Bronze Armored Puppet Corpse's attack rhythm to identify and strike a vital point 120.
  • Detects traps, ambushes, suspicious fog, and hidden enemies while operating in Anxia Mountain 161 176 205.
• Limitations:
  • Limited information and the involvement of hidden organizations can make even careful preparation unreliable 177 205 212 216.

System

Gu Chang'an possesses a “System” that displays his status and allows him to upgrade skills by consuming lifespan 1 38.

• Applications:
  • Provides a clear overview of his name, lifespan, identity, realm, Constitution, and cultivation techniques 6 15 49.
  • Converts lifespan into rapid progress in martial techniques and Constitution 1 22 38.
  • Records the changes caused by pills, medicine, status promotion, and realm breakthroughs 60 90 110 125.
• Limitations:
  • The System's upgrades exact a direct lifespan cost that can endanger Gu Chang'an's future 38 89.
  • It cannot eliminate the consequences of injuries, poison, or external threats without suitable medicines and cultivation resources 91 110.

Relationships

Gu Chang'an and Li Hongye

Gu Chang'an and Li Hongye share a complex relationship that evolves from senior and junior martial artists to a close bond with romantic undertones. Li Hongye, a constable of Nanning County and Li Tianfeng's daughter, initially teases Gu Chang'an but quickly becomes a protective and supportive senior sister 9 12. She guides him through the process of becoming a constable and advocates for him 14 15. Their interactions are often playful, and a growing closeness is evident, though their relationship is described as “more than friends, but not yet lovers” 27 29.

• Li Hongye offers help and guidance, stating that no outsider gets to bully anyone from Sky Wind Martial Hall 9 12.
• She guides Gu Chang'an through the process of becoming a constable and advocates for him to Director Wang 14 15.
• Their interactions are playful, with Li Hongye teasing Gu Chang'an, and their relationship is described as being “more than friends, but not yet lovers” 27 29.
• They spar and share drinks, discussing constable duties, gang activities, and personal anecdotes, leading Gu Chang'an to feel a sense of belonging 28.
• They work together effectively in battle, demonstrating coordination and trust 35 67.
• Li Hongye significantly improves her cultivation through cooperation with Gu Chang'an's medicinal baths, pills, and body-refining methods, eventually touching upon Sixth Rank 49 127.
• She remains concerned for Gu Chang'an during his illness and prolonged recovery 91 108.

Gu Chang'an and Li Tianfeng

Gu Chang'an's relationship with Li Tianfeng is that of a master and personal disciple, characterized by respect, guidance, and a shared commitment to martial arts. Li Tianfeng, master of Sky Wind Martial Hall, recognizes Gu Chang'an's potential and takes him as a personal disciple 9. He explains the ranks of Houtian martial artists, provides cultivation guidance, and uses his connections to help Gu Chang'an join the Martial Guard Division 9 11.

• Li Tianfeng recognizes Gu Chang'an's potential and takes him as a personal disciple 9.
• He uses his connection with Director Wang Hao to help Gu Chang'an become a constable 11.
• He supports and guides Gu Chang'an during his breakthrough to Eighth Rank 49.
• He reprimands Gu Chang'an for recklessly confronting a Seventh Rank martial artist while injured, revealing deep concern for his disciple's life 87.
• He travels to Guangling Commandery City with Xie Lanzhi to seek treatment for Gu Chang'an and ultimately requests help from Medicine King Valley 91 110 111.

Gu Chang'an and Xie Lanzhi

Xie Lanzhi, Li Tianfeng's wife and Li Hongye's mother, welcomes Gu Chang'an into their family with warmth and support. She supports her husband's decision to take Gu Chang'an as a disciple and offers him direct help if needed 9. She shows a caring nature, inviting Gu Chang'an to meals and expressing concern for his and Li Hongye's safety during dangerous missions 11 27 33.

• Xie Lanzhi supports Li Tianfeng's decision to accept Gu Chang'an as a disciple and welcomes him into their family 9.
• She provides Gu Chang'an with meals and a sense of familial warmth 11 27.
• She worries for Gu Chang'an and Li Hongye before dangerous missions 33.
• She assists in caring for Gu Chang'an after his injuries and supports Li Tianfeng's efforts to find treatment 87 91.
• She is willing to face her difficult history with the Xie Family to seek help for Gu Chang'an 91.

Gu Chang'an and Wang Xiaojuan

Gu Chang'an develops a compassionate and protective relationship with Wang Xiaojuan, a young girl entrusted to his care. He intervenes when Wang Xiaojuan and her grandfather are being harassed by a gang, pays off their debt, and takes Wang Xiaojuan in after her grandfather's suicide 23. This establishes a quasi-parental or guardian role for Gu Chang'an.

• Gu Chang'an intervenes to protect Wang Xiaojuan and her grandfather from the Flowing Gold Gang, paying off their debt 23.
• He takes Wang Xiaojuan into his care after her grandfather's suicide, establishing a guardian role 23.
• Wang Xiaojuan matures quickly and helps Gu Chang'an with chores 23.
• She shows resilience and adaptability, accepting a move closer to Sky Wind Martial Hall without attachment to her old home 49.
• She understands the danger Gu Chang'an faces and remains determined to support him 33.
• Gu Chang'an continues to care for her during later turmoil in Nanning County 91 94.

Gu Chang'an and Director Wang Hao

Gu Chang'an's relationship with Director Wang Hao is initially that of a discerning leader and a promising recruit, evolving into a bond of trust and respect. Wang Hao interviews Gu Chang'an and hires him as a constable, appreciating his ambition and merit 14. Later, on his deathbed, Wang Hao entrusts Gu Chang'an with the care of his family and reveals the secret location of a buried treasure 47.

• Wang Hao hires Gu Chang'an as a constable in the Fugitive Apprehension Group, appreciating his ambition and merit 14.
• He trusts Gu Chang'an to lead a dangerous raid against the Firewood Gang and promises to report his merits for promotion 33 34.
• On his deathbed, he entrusts Gu Chang'an with the care of his family and reveals the location of buried treasure 47.
• Gu Chang'an pays his respects to Wang Hao and offers condolences and assistance to his family 47 48.

Gu Chang'an and Lu Zhao

Lu Zhao is the superior who promotes Gu Chang'an to Head Constable and brings him under his command after the demon attack 59. Their relationship is pragmatic and cautious: Gu Chang'an recognizes Lu Zhao's political influence and the protection it can offer, while remaining aware of his arrogance and cold-blooded nature 59 60.

• Lu Zhao promotes Gu Chang'an to Head Constable and rewards him with three Body Tempering Pills 59.
• He questions Gu Chang'an regarding the demon attack and tests his loyalty 59.
• Gu Chang'an pledges to uphold the law, protect human lives, and reject self-serving compromise 59.
• Gu Chang'an decides to align with Lu Zhao's faction for opportunity and protection, but does not trust him completely 60.

Gu Chang'an and the Demon Slayer Squad

After becoming Head Constable, Gu Chang'an forms the Demon Slayer Squad, an elite team dedicated to investigating demons, Blood Pills, and heretical cults 60. He treats the squad as the foundation of his influence and relies on careful knowledge of each member's abilities.

• Chen Qi becomes the squad's deputy captain because Gu Chang'an values his courage, persistence, tracking ability, and investigative mind 60.
• The squad includes Chen Qi, Shen Feng, Wei Zhong, Liu Yuan, Han Jiang, Du Qing, Wen Ruyan, Zhang Yue, Liu Bing, and other trusted constables 60.
• Gu Chang'an's selection emphasizes reliability, specialized abilities, and commitment rather than cultivation alone 60.
• His leadership strengthens through repeated demon and cult-related investigations 60 105.

Gu Chang'an and Mei Sanniang

Mei Sanniang is the leader of a professional Spirit Materials gathering team operating in Anxia Mountain. She initially recruits Gu Chang'an for his strength, then grows to respect his composure, decisiveness, and reliability under pressure 133 147 152.

• Mei Sanniang invites Gu Chang'an to join her herb-gathering team and later offers him entry into its Elite Group 133 147 152.
• She recognizes his restraint and humility despite the hostility of veteran members 147.
• After his actions during internal conflict and ambushes, she appoints him Deputy Commander under her direct authority 161.
• Their relationship is founded on practical cooperation, mutual recognition, and growing trust rather than blind dependence 161.
• Gu Chang'an protects her from Shadowy Valley assassins, later learning that their true target was Mei Sanniang 167.
• Mei Sanniang offers to accompany him when he chooses to confront Shadowy Valley alone, but he refuses because he does not want her to die 169.

Gu Chang'an and Feng Lie

Feng Lie is the Head Constable of Anxi County's Martial Guard Division. He meets Gu Chang'an following conflict with the Lin Family and recognizes both Gu Chang'an's strength and his commitment to justice 134.

• Feng Lie handles Gu Chang'an's conflict with the Lin Family fairly and invites him to assist with an investigation into abnormal Demonic Beast activity at Anhui Mountain 134.
• The two cooperate in Three Temples Village and develop mutual respect 137 139.
• Feng Lie and Song Qingyin are initially suspicious when the Yellow Weasel Demon King is found dead, but ultimately accept Gu Chang'an's explanation 139.
• Feng Lie later attempts to recruit Gu Chang'an into Anxi County's Martial Guard Division, but Gu Chang'an declines because he intends to return to Nanning County 145.

Gu Chang'an and Jiang Xuan

Jiang Xuan is an experienced elder associated with the Green Sun Bamboo Forest. He recognizes Gu Chang'an's unusual ability and offers him measured guidance rather than treating him as an inferior 270 273.

• Jiang Xuan recognizes Gu Chang'an's extraordinary martial ability and guides him through looming pressure from the Heavenly Patrol Division 270 273.
• He advises Gu Chang'an that the surest way not to implicate others is to become strong enough that no one dares investigate him 273.
• Jiang Xuan asks Gu Chang'an to accompany him on an escort mission, naming him as his deputy 274.
• Their relationship is one of mutual respect between capable martial artists 273 274.

Gu Chang'an and Jiang Xiaoyu

Jiang Xiaoyu is Jiang Xuan's granddaughter and a capable swordswoman. She develops admiration and growing affection for Gu Chang'an while training and fighting alongside him 270.

• Jiang Xiaoyu secretly watches Gu Chang'an practice and admires his steadiness and martial demeanor 270.
• She spars with him, and Gu Chang'an acknowledges her swordsmanship while offering practical guidance on coordinating footwork and attacks 270 275.
• She worries about him during the Heavenly Patrol Division's investigation 273.
• She joins Gu Chang'an and Jiang Xuan on an escort mission, where she coordinates her swordplay with his saber techniques 274 277.
• Gu Chang'an protects her against the Earth Corpse Beast, severely injuring himself after using Soul Severance: Annihilation to destroy it 293.
• Jiang Xiaoyu remains determined to save and protect him after he collapses 293.

Gu Chang'an and the Firewood Gang

Gu Chang'an's relationship with the Firewood Gang is one of escalating conflict and animosity. The gang, particularly Zhang Qiang, initially attempts to extort Gu Chang'an 3 4. After Zhang Qiang's death, the Firewood Gang, led by Liang Biao, suspects Gu Chang'an and confronts him, leading to a tense standoff 15 16. Gu Chang'an's actions, including injuring their members and investigating their illicit activities, solidify their adversarial relationship 20 21.

• Zhang Qiang identifies Gu Chang'an as a potential target after noticing his uncharacteristic ability to pay dues 3.
• Gu Chang'an kills Zhang Qiang, leading the gang to suspect him in the disappearance 6 15.
• Liang Biao confronts Gu Chang'an outside his home, but Gu Chang'an disarms an attacker and refuses intimidation 15 16.
• His neighbors and Liu Hong of the Hunter Gang force the Firewood Gang to retreat 16.
• The gang's refinement and use of Blood Pills intensifies Gu Chang'an's resolve to destroy them 29 32.
• Gu Chang'an participates in the raid on Black Wind Ridge, kills key gang members, and helps dismantle their operations 33 34 36 41.

Significant Events

• Gu Chang'an becomes a commoner 3 4.
• Gu Chang'an's Constitution reaches 42 4.
• Gu Chang'an becomes a hunter 6.
• Gu Chang'an's Constitution breaks 100 6.
• Gu Chang'an enrolls in Sky Wind Martial Hall 6.
• Gu Chang'an witnesses a bandit attack led by Ma Dahu 7.
• Gu Chang'an begins training under Li Tianfeng and becomes his personal disciple 9.
• Gu Chang'an reaches Ninth Rank and assists Li Hongye in capturing Lu Kai 10 12.
• Gu Chang'an is hired as a constable in the Fugitive Apprehension Group 14.
• Gu Chang'an becomes a constable and a Minor Official 15.
• Gu Chang'an's Constitution increases by 4 points daily 15.
• Gu Chang'an is issued constable number “Fugitive Apprehension · Ding Three One Four” 15.
• Gu Chang'an repels the Firewood Gang with the support of his neighbors and Liu Hong 16.
• Gu Chang'an's Constitution reaches 222 22.
• Gu Chang'an's Constitution reaches 352 27.
• Gu Chang'an takes Wang Xiaojuan to Sky Wind Martial Hall 29.
• Gu Chang'an reports the Firewood Gang's Blood Pill refinement to Director Wang Hao 32.
• Gu Chang'an kills Zhang Yuying after she consumes a Blood Pill and goes mad 32 33.
• Gu Chang'an, Li Hongye, and Jiang Yuan lead teams to attack Black Wind Ridge 34.
• Gu Chang'an discovers the real Firewood Gang camp is deeper within Black Wind Ridge 34.
• Gu Chang'an decapitates Zheng Zhen and battles Liang Hu 36.
• Gu Chang'an's Constitution reaches 400 38.
• Gu Chang'an draws Liang Hu and Duan Lie toward the Pill Hall 41.
• Gu Chang'an breaks through to Eighth Rank 49.
• Gu Chang'an's Constitution reaches 525 49.
• Gu Chang'an moves closer to Sky Wind Martial Hall with Wang Xiaojuan 49.
• Gu Chang'an is promoted to Head Constable and receives three Body Tempering Pills from Lu Zhao 59.
• Gu Chang'an forms the Demon Slayer Squad and appoints Chen Qi as deputy captain 60.
• Gu Chang'an's Constitution reaches 608 64.
• Gu Chang'an kills Ma Dahu with Li Hongye's assistance during the campaign against Black Tiger Stockade 67.
• Gu Chang'an's lifespan falls to two years and three months after heavy System expenditure 89.
• Gu Chang'an breaks through to Seventh Rank 90.
• Li Tianfeng and Xie Lanzhi seek medical aid in Guangling Commandery City for Gu Chang'an 91.
• Gu Chang'an restores order as Acting Head Constable during conflict between the Falling Wind Association and Flowing Gold Gang 94.
• Xiao Yayun of Medicine King Valley treats Gu Chang'an's illness and improves his Constitution 110 111.
• Gu Chang'an acquires the Crimson Spirit True Fire Alchemy Technique 112.
• Gu Chang'an breaks through to Sixth Rank and produces Spirit Energy 125.
• Gu Chang'an takes extended leave from the Martial Guard Division to travel and temper himself 127.
• Gu Chang'an arrives in Anxi County City and confronts the Lin Family 131 132 133.
• Gu Chang'an receives recognition as a Third Tier Alchemist 143.
• Gu Chang'an refines ten top-grade Marrow Cleansing Pills 145.
• Gu Chang'an joins Mei Sanniang's Spirit Materials gathering team in Anxia Mountain 147.
• Mei Sanniang offers Gu Chang'an the position of Deputy Commander 161.
• Gu Chang'an kills Mo Li and multiple Shadowy Valley assassins 167.
• Gu Chang'an enters Shadowy Valley's territory alone to settle the conflict 169.
• Gu Chang'an survives repeated organized assassination attempts in Anxia Mountain 176 177 205 206.
• Gu Chang'an saves Mu Rong, Shang Chu, and an archer from a Red Armored Demon and encounters Li Yue Camp 212.
• Gu Chang'an travels to Southern Ridge to pursue clues connected to his past and the Blood Luring Technique 216.
• Gu Chang'an is drawn into an abnormal realm and later meets Chen Dao and Liu Qing 235 236.
• Gu Chang'an develops a closer bond with Jiang Xiaoyu in the Green Sun Bamboo Forest 270.
• Gu Chang'an is tested and investigated by Shen Ce of the Heavenly Patrol Division 273.
• Gu Chang'an joins Jiang Xuan and Jiang Xiaoyu on an escort mission 274 275.
• Gu Chang'an destroys an Earth Corpse Beast using Soul Severance: Annihilation and is severely injured 293.
• Gu Chang'an is confronted by a mysterious “reference” who tests whether he can remain himself without an unnamed woman 378.

Themes

The narrative explores several significant themes, including the struggle for survival and self-improvement in a chaotic world 1 4 6. It highlights the importance of strength and martial prowess, as individuals like Gu Chang'an strive to become stronger to protect themselves and others 1 6 48. Power dynamics and corruption are prevalent, with those in authority often exploiting the vulnerable, while criminal gangs such as the Firewood Gang and Flowing Gold Gang wield significant influence 3 4 15 94. The corrupting influence of power is further emphasized through forbidden methods such as Blood Pills, demonic cultivation, Human-Gu Demons, and corpse-related techniques 29 31 32 38 212 293.

The story also examines the clash between moral integrity and expedient violence. Gu Chang'an consistently refuses to serve evil or compromise his principles for safety, but his travels force him to confront enemies with lethal decisiveness 21 59 161 167. Courage, determination, and resilience remain central, demonstrated by his refusal to back down from adversity and his perseverance despite injury, shortened lifespan, and overwhelming enemies 16 31 89 293.

Unity and solidarity are explored through the intervention of neighbors, the support of Sky Wind Martial Hall, the Demon Slayer Squad, and Gu Chang'an's growing alliances in Anxi and the Green Sun Bamboo Forest 16 60 137 274. Sacrifice and selflessness are evident in Gu Chang'an's willingness to endanger himself to protect companions and innocent people 38 41 131 293. Later developments further examine identity, belonging, and destiny, as Gu Chang'an's refugee past, mysterious origins, abnormal blade aura, and encounters with hidden organizations raise questions about who he is and whether he can remain true to himself 216 229 273 378.