Zhang San

Biodata

Feature	Details
Name	Zhang San (张三)
Alias(es)	Third Zhang; Siri
Species/Race	Human ghost; ghost cultivator
Gender	Male
Affiliation	Celestial Masters' Mansion of Mount Longhu; Gryffindor House; Hogwarts Guardian Deity Temple
Occupation/Role	Government-sponsored exchange student; temple deity; temple and arcade proprietor; mentor to student research groups
Status	Deceased by Killing Curse; persists as a conscious, intact ghost at Hogwarts
First Appearance	1

Power Progression

Stage / Realm / Level	Chapter	Notes
Living cultivation	2	Had begun cultivating life and vitality at Mount Longhu before arriving at Hogwarts; his prior cultivation did not carry over after death.
Ghost / soul body	1 2	Killed by Quirrell's Killing Curse, then remained at Hogwarts as a rational ghost under the castle's protection from soul reapers.
Incense deity offices	4 5	Dumbledore authorized him as Hogwarts's God of the Land, Mountain God, and Water Warden, allowing him to establish a temple and operate beyond the castle.
Yin Gathering Realm	10 44 49	The first realm of ghost cultivation. It strengthens and solidifies his soul body, but he remains weak in direct combat and has limited magical power.

Background

Zhang San was orphaned in the 1980s and sent to Mount Longhu at age four. He became a fellow disciple of Zhang Da, the future Celestial Master, received the sect surname Zhang, and was named Zhang San because he was the third child among his peers to enter the sect. He trained there for more than seven years and became the strongest body cultivator of his generation. 1 2 23

He was sent to Hogwarts as a publicly funded exchange student from the Eastern cultivation world. During the Sorting Ceremony, the Sorting Hat placed him in Gryffindor for his intelligence, diligence, and courage. 1

On his first day, Zhang San publicly exposed Quirinus Quirrell as Voldemort's servant and revealed Voldemort's presence beneath Quirrell's turban. Quirrell immediately killed him with the Killing Curse; Dumbledore disarmed Quirrell, but Voldemort escaped as black mist. 1

Zhang San's soul remained in Hogwarts as a ghost while his unconscious body was sealed in a coffin for return to China. His transformation caused substantial memory loss, including most of his knowledge of the future, but left his memories of his current life intact. 2 3

Zhang Da sent him the Nine Nether Soul Refinement Chapter and the Divine Talisman Heavenly Fragrance Art. The first offered a means to preserve his sanity and cultivate a stronger soul; the second offered survival through faith and incense as a local deity. 2

During the funeral delegation's visit, Zhang Da negotiated with Dumbledore for Zhang San to receive the divine offices of Hogwarts's God of the Land, Mountain God, and Water Warden. The resulting temple gave Zhang San a legitimate foothold in the mortal world and expanded his range to the Forbidden Forest, Black Lake, and nearby hills. 4 5 6

Appearance

As a ghost, Zhang San is a translucent soul body capable of floating, flying, and passing through walls. He generally retains the mannerisms and appearance of an eleven-year-old boy, though his form initially appeared thin and unstable. 2 5

• His ghost body is intangible to ordinary physical attacks. 2 34
• He can emerge from floors and walls rather than using doors. 31
• He can temporarily form a physical body from incense power, though doing so is costly. 12 17
• He may inhabit a jade pendant when traveling long distances. 17 18

Personality

Zhang San is adaptable, practical, and unusually composed for someone killed on his first day of school. He quickly treats ghosthood as a problem to solve: securing cultivation manuals, divine offices, worshippers, income, and methods of obtaining a usable body. 2 4 12 18

He is entrepreneurial and opportunistic. He turns his temple into an incense-funded arcade, sells benefits through a membership-points system, finances student research, and treats the Forbidden Forest's magical materials as potential business resources. 7 9 34 36 44

He is supportive of friends' ambitions and often gives targeted advice rather than indiscriminate aid. He mentors Ron's broom research, helps Neville find a path in Herbology, and encourages Harry to focus on dueling rather than research. 27 33 50

Zhang San's ethics are flexible. He frightens students for negative emotions, possesses Hermione to force her participation in the midnight duel, takes Malfoy's money as “compensation,” and experimentally absorbs emotions directly from Ron and Harry. 5 15 16 47 He nevertheless values balance in cultivation and consciously rejects becoming an evil cultivator. 11 49

Abilities & Skills

Ghost Physiology

Zhang San's complete soul allows him to remain more rational and humanlike than Hogwarts' ordinary ghosts.

• Flies, passes through walls, and ignores conventional physical attacks. 2 34
• Retains all three spiritual souls and seven corporeal souls, unlike the incomplete souls of most Hogwarts ghosts. 21
• Can consume the vital essence of offerings; the remaining food spoils rapidly and becomes tasteless. 7
• Cannot remain far from his usual haunts for long without risking dissipation. 17
• Initially has little direct combat ability and cannot reliably affect material objects without magic, possession, or incense power. 7 10 44

Nine Nether Soul Refinement

Zhang San cultivates the ghost-cultivation method sent by Zhang Da.

• Draws on negative emotions, earthly yin energy, and moonlight essence; all three must remain balanced. 5 11
• Negative emotions increase cultivation, earthly yin stabilizes the soul, and moonlight purifies impurities. 11
• Moonlight tempering is agonizing and caused nightly screams that disturbed Hogwarts. 11 12
• At the Yin Gathering Realm, he can eventually solidify his soul body and learn low-level arts such as Yin Wind Art, Ghostly Blindness, Ghost Wall, and Possession. 10
• Directly absorbing an individual's negative emotions can noticeably improve that person's mood, as demonstrated with Ron and Harry. 47

Incense Divinity

His divine offices allow Zhang San to cultivate through worship and incense offerings.

• Holds the offices of Earth God, Mountain God, and Water Warden for the Hogwarts district. 4 5
• Draws incense power from any consecrated statue dedicated to him. 6 31
• Can instantly travel between his statues, including those in Hogwarts House common rooms. 31
• Uses incense power for attack, defense, support, temporary bodies, and divine arts. 12 17 44
• His shrine's membership-points system greatly expands his worship base across all four Houses. 44

Possession

Zhang San can occupy other bodies to act physically while his own soul body remains weak.

• Possessed Hermione Granger to bypass her objections and duel Draco Malfoy. 15 16
• Can possess small animals with low mental resistance; he specifically sought an animal body after failing to buy a cadaver. 18 20
• Can control Peeves for tasks such as playing cards. 48
• Possession is invasive and leaves the host distressed, as shown by Hermione's reaction. 16

Earth God Authority

As Hogwarts's Earth God, Zhang San can influence plant growth.

• Restored Harry and Ron's dying Dittany during Herbology. 25
• Can accelerate magical plant growth in exchange for prayer and incense offerings. 25
• Earned Hufflepuff worshippers after Professor Sprout placed his idol in the Hufflepuff common room. 25 31

Mountain God Authority

Zhang San exercises authority over the Forbidden Forest.

• Confronted Aragog and the Acromantula colony without fear of their physical attacks. 34
• Collected Acromantula venom as a research resource. 34
• Cursed the Acromantulas' eggs to remain infertile for one year, exhausting his accumulated incense power. 34
• Negotiated with the Unicorn King for twenty unicorn magical horns in exchange for forty young unicorn births. 40

Magic and Transfiguration

Zhang San learns Hogwarts magic with exceptional speed once he obtains a spectral wand.

• Uses a Mount Longhu spirit-bamboo wand with a qilin-whisker core. 22
• Developed a personal Transfiguration incantation after transforming a matchstick into a wooden strip. 22
• Transformed a wooden chair into a leather sofa during his first Transfiguration lesson. 24
• Can cast spells such as Aguamenti and create detailed Transfigured figures. 23 49
• His Transfiguration skill becomes comparable to a fifth-year's after only half a year, though his low ghost-cultivation realm limits the duration of his creations. 49

Martial Arts

Before death, Zhang San was Mount Longhu's strongest body cultivator among his peers.

• Trained in martial arts from age four and mastered the eighteen categories of weapons. 23
• Could withstand ordinary Daoist talismans and spells while circulating his living cultivation. 23
• Lost access to his physical martial strength after becoming a soul body, though he can employ martial techniques while controlling a host body. 4 15

Broom Control and Occult Methods

Zhang San possesses unusual resonance with magical flying brooms and uses Daoist methods in research.

• Can seize control of any flying broom within his sight. 27
• Aided the Broomstick Research Group with occult material selection. 39
• Used a Ghost Compass and the Dragon-Seeking Formula to identify Mount Longhu Giant Bamboo as a suitable broom material. 39
• Helped develop the Black Bamboo Mark I, a broom with handling superior to the Nimbus 2000. 40 42

Equipment / Weapons / Items

• Nine Nether Soul Refinement Chapter — Ghost-cultivation manual sent by Zhang Da. 2
• Divine Talisman Heavenly Fragrance Art — Incense-divinity cultivation manual. 2
• Spectral wand — Spirit bamboo shaft, qilin-whisker core; recovered from his funeral offerings. 22
• Crystal ball — Gift from Dumbledore used to improve moonlit soul tempering. 31
• Ghost Compass — Bronze feng shui compass used with the Dragon-Seeking Formula. 39
• Jade pendant — Container for his soul during Floo travel. 17
• Life-saving talismans — Protected Ron and Hermione during an enchantment experiment explosion. 37
• Crookshanks — Part-Kneazle ginger cat purchased as a suitable animal body for possession and possible future enlightenment. 20
• Hogwarts Guardian Deity Temple — His temple complex, containing consecrated statues for his three divine offices and an underground arcade. 6 9

Relationships

• Zhang Da — Eldest senior brother and current Celestial Master of Mount Longhu; sends Zhang San cultivation manuals and secures his divine offices at Hogwarts. 2 4
• Albus Dumbledore — Headmaster who apologizes for Zhang San's death, approves his divine posts, gives him a crystal ball, and trusts his report about Scabbers. 2 4 31
• Minerva McGonagall — Head of Gryffindor and Transfiguration professor; personally delivers Zhang Da's reply, insists Zhang San continue his education, and recognizes his Transfiguration talent. 2 6 24
• Harry Potter — Friend, temple attendant, and research collaborator; Zhang San mentors him, offers hope of seeing his parents, and encourages his aptitude for dueling. 6 21 50
• Ron Weasley — Friend, temple attendant, and broom-research student; Zhang San supports Ron's independence and guides his technical work. 6 28 33
• Hermione Granger — Classmate and later research collaborator; Zhang San forcibly possesses her during the Malfoy duel, leaving her resentful despite later cooperation. 15 16 37
• Neville Longbottom — Devout believer after Zhang San saves him from a broom accident and directs him toward Herbology; later works as a temple gardener and arcade security. 27 30
• Pomona Sprout — Herbology professor who recognizes Zhang San's plant-growing authority and brings his worship to Hufflepuff. 25
• Professor Binns — Fellow ghost who receives Zhang San's offerings and later provides substantial funds through his recovered back pay. 35 36
• Fred and George Weasley — Collaborators in the broom and magical-card projects; Zhang San supplies ideas, materials, and occult assistance. 39 40 50
• Aragog — Acromantula leader who rejects Zhang San's Mountain God authority and is punished through his colony's infertility curse. 34
• Voldemort — Mutual but initially unidentified enemy; Zhang San senses Voldemort's hatred after Voldemort flees Hogwarts. 1 48

Story Role / Major Arcs

Exchange Student and Death

Zhang San's arrival at Hogwarts immediately derails the expected first-year events: he exposes Quirrell and Voldemort during the Sorting Ceremony, is killed, and survives as a ghost. 1 2

Funeral and Divine Appointment

His death triggers a major Daoist delegation from China, a full funeral at Hogwarts, and the creation of his three divine offices under Dumbledore's authority. 3 4 5

Temple and Arcade Founder

Zhang San establishes the Hogwarts Guardian Deity Temple, recruits Harry and Ron as attendants, and opens a consecrated underground arcade to generate incense offerings and income. 6 7 9 12

Hogwarts Student and Ghost Cultivator

He returns to classes, develops a unique method of Transfiguration, assists in Herbology, and uses student emotions and moonlight to sustain his Yin Gathering cultivation. 11 22 25 47

Research Patron

Zhang San funds and advises the Broomstick Research Group, helps identify enchanted bamboo, obtains unicorn magical horns, and sponsors Gryffindor's Quidditch team with Black Bamboo Mark I brooms. 33 39 40 42

Shrine Expansion

By introducing a membership-points system and placing idols in all four House common rooms, Zhang San turns worship into a school-wide institution and strengthens his incense-divinity path. 44

Trivia

• Zhang San's name reflects his place as the third child to enter his Mount Longhu peer group. 1
• He lost much of his knowledge of the original Harry Potter story after becoming a ghost. 2
• His personal Transfiguration incantation is a shouted hometown-dialect variation of “Change!” rather than a standard spell. 22
• His temple only opens on holidays to avoid encouraging students to skip class for the arcade. 22
• He classifies magical proficiency into five levels, from ordinary incantation-and-gesture casting to surpassing one's innate magical-power limit. 33