Lin Dong

Biodata

Feature	Value
Name	Lin Dong (林东)
Alias(es)	Brother Dong; Big Brother; the Flame Emperor’s big brother 2 3
Species/Race	Originally human; gains Azure Dragon transformation abilities through a Heavenly-blessed Devil Fruit 5 28 33
Gender	Male 2
Affiliation	Senior Class One, First High School, also called No. 1 Middle School; sole Awakener linked to the Battle Through the Heavens secret realm 1 3 27
Occupation/Role	Student, Awakener, and captain of the Train to Busan team comprising himself, Zhou Gong, and Bai Ruoxue 1 11
Linked World	Battle Through the Heavens 5
Status	Alive; being recruited by several martial institutions and the Apocalypse Conglomerate 39
First Appearance	Chapter 1 1

Power Progression

Stage / Realm / Level	Chapter	Notes
Level 1	5	Initial panel records stamina 5, spirit 15, strength 5, and speed 5. His comparatively high spirit is attributed to having lived two lives.
Breath Concealment Art — Beginner	5	Spends one learning point to learn Xun’er’s technique.
Elementary Shadow Concealment	5	Spends a second learning point to advance the technique.
Advanced Shadow Concealment	5	Spends his third learning point. Becomes invisible to eyes and cameras for five minutes while moving or ten hours while stationary.
Potion-enhanced attributes	8	Gains 8 points each in stamina, strength, and speed, bringing all three to 13 while remaining level 1.
Level 2	11 12	Levels up while clearing Carriage 15. Receives four attribute points and one learning point; adds two points each to vitality and speed, raising both to 15.
Qi Concealment — Beginner	13	Spends one learning point to hide his scent from an infected Awakener. Duration increases to ten minutes moving or 25 hours stationary; concealment effectiveness reaches +120%.
Level 4	15	Documented at level 4 with spirit 23 after investing attribute points in scouting capability.
Breath Concealment — Beginner	17	Adds sound suppression and conceals his presence. Grants +160% concealment, lasting 20 minutes moving or 30 hours stationary.
Level 5	18	First level gained from exterminating the zombie horde with Storm-Pear Blossom Needles.
Level 6	18	Second consecutive level gained from the same attack.
Level 7	18	Third consecutive level gained; the attack also kills the Tyrant Zombie.
Iron Block acquired	18	Activates Number Eight’s Steel Bone, obtaining a level-15 defensive technique. This is the skill’s level, not Lin Dong’s character level.
Tiger Demon Strength Pill — Initial effect	20	Consuming the pill grants 30 strength points.
Bloodland Red-Strength Tiger remnant awakened	20	Absorbs blood and baleful energy released by Bai Ruoxue’s attack. Gains another 40 strength points, making the pill’s total increase 70.
Strength 95	21	Allocates all twelve points earned from his three consecutive level-ups to strength.
Advanced Breath Concealment	21	Spends one learning point to advance the technique.
Great Perfection Breath Concealment	21	Spends two more learning points. Gains +200% concealment and ten hours of unrestricted concealed movement.
Level 9	26	Post-instance panel records level 9, strength 95, eight unspent attribute points, and two learning points. Settlement awards 500 experience.
True Sight Eye acquired	26	Obtained from the upgraded gold chest; identifies the properties and value of items below level 50.
Heavenly-blessed Azure Dragon Fruit	27 28	Consumes the fruit during his three-second Heavenly Blessing. Gains stamina +50, strength +50, speed +50, and spirit +30; unlocks human form and partial beast transformation.
Partial beast transformation	28	Transforms his poisoned left arm into a dragon claw, restoring its mobility and granting a further +30 strength while transformed.
Spirit 61	28	Invests his remaining eight attribute points in spirit.
Myriad Forms Chant acquired	33	Receives Xun’er’s low Xuan-tier soundwave technique. His Azure Dragon nature lets him subdue the scroll’s ferocious aura.
Spirit-Cleansing Strength-Fixing Pill enhancement	35	Gains stamina +50 and spirit +30. The pill also heals his injuries from Ge Ye and clears accumulated exhaustion.

Latest Recorded Attributes

The latest complete status panel is recorded after consuming the Spirit-Cleansing Strength-Fixing Pill 35.

Attribute	Value
Level	9
Experience	1/2964
Stamina	115
Spirit	91
Strength	145
Speed	65
Unspent attribute points	0
Learning points	2

Background and History

Lin Dong transmigrated into a world whose secret realms and dungeons reproduce anime, films, novels, and other works he knew in his previous life. Rather than follow the worldwide rush to support Tang San in the SSS-rank Douluo Continent realm, he chose Xiao Yan in Battle Through the Heavens. Secret-realm choices cannot be changed, making him an outcast at school for committing to someone regarded as a failure 1.

With thirty days left before the college entrance examination, Lin Dong obtained a school-backed loan for a Stamina Enhancer and mortgaged his only property for a Strength Enhancer. Both were intended for Xiao Yan. He originally hoped the gifts would raise Xiao Yan’s favorability to 80%, but his intervention against the Xiao Clan’s bullying produced a much greater result 1 2 3.

Appearance

• Build and bearing: A straight-backed young man with a sharp, hawk-like gaze 2.
• Face: Sharp brows, star-bright eyes, jade-like features, and a clean, chiseled profile; Nalan Yanran compares his appearance to a young immortal 29.
• Eyes: Normally jet-black; become red slits when he drives his tiger-associated baleful energy to its limit 2 24.
• Poisoned left arm: Blackish-purple in its ordinary state; partial transformation covers it in azure scales and produces sharp claws with a blue-violet sheen 28 29 30.
• Tiger awakening: His muscles swell and his bones and sinews crackle as he absorbs blood energy 20.

Personality

Lin Dong is independent, irreverent, and resistant to social pressure. He remains amused rather than intimidated by his classmates’ ridicule, trusting his own knowledge of Xiao Yan and Tang San. His confidence is paired with practical calculation: he reinvests valuable magic cores in personal growth, demands clear leadership during dangerous missions, and challenges recruiters who present existing obligations as special favors 1 5 6 11 39.

His loyalty involves substantial personal risk. He protects Xiao Yan before possessing comparable combat power, shields Bai Ruoxue rather than abandoning her, and relinquishes an examination opportunity to secure her treatment. That protectiveness does not make him merciful toward enemies: he interrupts cultists with lethal attacks and kills the Bai Family elder after she attempts to kill him 2 20 22 27 37.

Abilities & Skills

Knowledge of Secret-Realm Worlds

Lin Dong recognizes characters, weapons, and settings from works encountered in his previous life 1.

• Chooses Xiao Yan despite the prevailing preference for Tang San 1.
• Recognizes Tang Sect hidden weapons and anticipates their danger 5 9 23.
• Identifies the Iron Block-using zombie as an infected Awakener 13.
• His knowledge is not infallible: the altered Train to Busan instance contains threats unlike those he remembers 15.

Breath Concealment Art

A high Yellow-tier technique given by Xiao Xun’er, originally used by Elder Ling. It can be practiced without Dou Qi and is described as capable of concealing its user from those below Dou Wang 4.

• Shadow concealment: Hides his visible form, including from surveillance cameras 5.
• Qi concealment: Seals his scent, defeating the mutant zombie’s tracking ability 13.
• Breath concealment: Suppresses movement sounds and conceals his presence 17.
• Great perfection: Permits ten continuous hours of concealed movement without separate moving and stationary limits 21.
• Limitations: Earlier stages leave scent or sound exposed. Black blood splashed onto him reveals his position to the Tyrant Zombie despite concealment 13 17 18.

Iron Block

Steel Bone grants Lin Dong a level-15 Iron Block technique, identified as one of the Six Navy Techniques. Activation gives his body an iron-gray coloration and sharply increases defense 18.

• Withstands the summoned Tang San’s Storm-Pear Blossom Needles 23.
• Helps him endure Ge Ye’s Yellow Springs Thick Earth Sword 30.
• Does not prevent every injury: a poisoned needle penetrates his arm, and the resulting poison prevents Iron Block from protecting that limb 23 24.
• Ge Ye’s final strike still leaves him with serious internal injuries 31.

Bloodland Red-Strength Tiger Power

Fully awakening the Tiger Demon Strength Pill leaves a wisp of the Bloodland Red-Strength Tiger’s remnant soul within Lin Dong. Its power is cultivated through blood and baleful energy 4 20 32.

• Grants a total increase of 70 strength points 20.
• Lets him clear the zombies attacking Zhou Gong with a single punch 21.
• Baleful energy temporarily halts the spread of Tang San’s poison, giving him time to bind his arm; it does not remove the poison 23.
• Manifests a blood-soaked tiger during his desperate attack against Buddha’s Fury Tang Lotus 24.
• Supplies the tiger aspect of his later soundwave attacks 32 36.

Azure Dragon Fruit

Lin Dong possesses the Fish-Fish Fruit, Mythical Zoan: Azure Dragon Form, transformed by Heavenly Blessing 27 28.

• Uniqueness: No other Azure Dragon Fruit will appear in his world 28.
• Weakness removal: Its seawater weakness is removed 28.
• Evolution potential: Awakening is unlocked as a future possibility; the awakened form itself remains locked 28.
• Partial transformation: Produces a scaled dragon claw, restores movement to his poisoned arm, and grants +30 strength 28.
• Venom-Devouring Dragon Claw: Combines physical force and the poison retained in his arm to tear through Ge Ye’s defenses 30.
• Unresolved effect: The blessing’s fourth effect remains unidentified 28.

Form	Documented Status
Human form	Unlocked 28
Partial beast transformation	Unlocked 28
Hybrid / Beast-Man form	Locked; requires stamina 100, strength 250, speed 100, and spirit 80. By the latest panel, only strength and speed remain insufficient 28 35
Azure Dragon Form	Locked; requirements remain hidden until the preceding form is unlocked 28
Awakened form	Locked 28
Unidentified additional form	Listed as “???” 28

Myriad Forms Chant

A low Xuan-tier soundwave Dou Technique requiring Beast Race bloodlines. Its destructive potential increases with bloodline purity, but its original developer lost his mind while accumulating violent beast bloodlines 33.

• Tiger Form — Mountain-Ghost Roar: Manifests the Mountain Lord tiger spirit and breaks a Bai Family martial artist’s “Kneel” curse, freeing Zhou Gong 36 37.
• Dragon Form — Abyss-Suppressing Prison: Manifests an enormous azure dragon, erases the Bai Family’s combined “Die” curse, and crushes its attackers 37.
• Compatibility: Lin Dong considers his existing Azure Dragon nature an advantage over practitioners who introduce foreign beast bloodlines into themselves 33.
• Collateral damage: The dragon attack devastates the hospital corridor 37.

True Sight Eye

A gold-chest reward that reveals the value and properties of items below level 50 26.

• Identifies the Hundred-Soul Affinity Pill as a level-30 item capable of increasing a specific person’s favorability by 1%–50% 26.
• Analyzes techniques, medicinal ingredients, and pills in Nalan Yanran’s Storage Ring 34.
• Cannot fully identify Er Lu’s silver coin, though it detects highly concentrated soul energy 26.

Tactical Leadership

• Establishes himself as captain because emergencies leave too little time for group deliberation 11.
• Uses concealment, demon-binding rope, and attacks on unprotected eyes to overcome an Iron Block-defended zombie 13.
• Deduces that Steel Bone is the key to the cult’s manifestation ritual 21.
• Uses surprise attacks to eliminate cultists before they can organize a defense 21 22.

Equipment / Weapons / Items

• Nalan Family Storage Ring — Received for accepting Nalan Yanran’s three-year challenge. Its interior is roughly apartment-sized and contains over a million gold coins, jewelry, weapons, nearly ten high Yellow-tier techniques, medicinal ingredients, and personal belongings 31 34 35.
• Steel Bone / Soul Bone Finger Skill — Taken from Number Eight; attaches over Lin Dong’s heart and grants Iron Block. It also serves as a key capable of facilitating an instance’s manifestation into reality 18 21.
• Silent Sleeve Arrow — Listed among his possessions; its ammunition case is used to contain the dangerous silver coin 25 26.
• Er Lu’s silver coin — Cult relic recovered from Er Lu’s heart. Direct contact causes murderous urges, intrusive chants, and delusions of supremacy; sealing it in the ammunition case stops the assault 25 26.
• Zombie Tears — Instance reward that grants +500% zombie affinity when worn once, or 20 mental strength if consumed. It remains in his recorded inventory 26 35.
• Storm-Pear Blossom Needles — Selected from Principal Wang Jianshe’s available equipment under an alumna’s unspecified request. Fires 9,999 needles in one second and is expended against the zombie horde 9 10 18.
• Hundred-Soul Affinity Pill — Recovered from Cultist Thirteen and later traded to Chen Kai for the Azure Dragon Fruit 21 27.
• Blood-Stasis-Clearing Pill — Given by Xiao Zhan for Lin Dong’s injuries; later administered to Bai Ruoxue 3 21.
• Second-rank wind-type magic cores ×3 — Found in Xiao Zhan’s medicine bag and exchanged for supplies. Each pristine core is valued at two million 4 5 6.
• Tiger Demon Strength Pill — Xun’er’s fourth-grade gift; consumed and fully awakened during the train instance 4 20.
• Spirit-Cleansing Strength-Fixing Pill — Found in the Storage Ring and consumed to heal injuries and enhance stamina and spirit 34 35.

Relationships

• Xiao Yan — Younger sworn brother and chosen secret-realm protagonist. Their mutual protection develops into a system-confirmed lifelong friendship 2 3 24 25 31 32.
• Xiao Xun’er — Becomes a younger-sister figure and explicitly recognizes him as her big brother. Gives him concealment, tiger power, and Myriad Forms Chant while warning him about their risks 4 32 33.
• Xiao Zhan — Treats him as a valued nephew, supplies medicine and magic cores, and promises to defend him in Wutan City. His favorability reaches 90% 3 5.
• Zhou Gong — Teammate who accepts his captaincy, follows his orders, and survives through his intervention. Later alerts him to Bai Ruoxue’s danger 11 13 21 35.
• Bai Ruoxue — Teammate who risks fatal Curse Words backlash to save him. He reciprocates by protecting her, treating her injuries, and surrendering an examination opportunity for her care 20 21 27 38.
• Bai Ruobing — Bai Ruoxue’s protective older sister; thanks him for preserving Ruoxue’s treatment opportunity but initially conceals the full extent of her injuries 36 38.
• Nalan Yanran — Enemy and three-year duel opponent. His intervention in her broken engagement, physical humiliation of her, and discovery of her private belongings intensify her hostility 29 30 31 34 35.
• Ge Ye — Misty Cloud Sect deacon whom Lin Dong defeats to obtain the marriage agreement and compensation, though the battle seriously injures him 30 31.
• Chen Kai — Oversees the affinity-pill exchange and arranges Bai Ruoxue’s treatment and Lin Dong’s return to school 27.
• Liu Ruyan — Powerful medical ninja and recruiter. Lin Dong seeks her help for Bai Ruoxue but rejects her attempt to make existing treatment obligations a recruitment inducement 38 39.
• Yuan Bubu — Instructor who promotes Tang San and publicly disparages Lin Dong’s choice 1.
• God-Worshipping / Demon-Worshipping Cult — Antagonistic organization behind the train manifestation plot. After encountering its coercive relic, Lin Dong vows to destroy it 16 21 25.

Story Role / Major Arcs

Securing Xiao Yan’s Trust

Lin Dong confronts Xiao Pohu and Xiao Ning over their bullying, then charges Xiao Ning with a dagger despite being vastly weaker. A clan elder severely injures him, but his first concern is protecting the two enhancers intended for Xiao Yan. This sacrifice brings Xiao Yan’s favorability to 100%, closes the secret realm to other Awakeners, and extends Lin Dong’s permitted stay to 24 hours 2 3.

The encounter also prompts Xiao Yan to make a six-month promise to force Xiao Ning to apologize. Xiao Zhan pledges protection, while Xun’er’s gifts provide Lin Dong with his first major survival technique and a future source of physical power 3 4.

*Train to Busan* and the Manifestation Plot

As team captain, Lin Dong adapts to infected Awakeners, rescues his companions, and uncovers a cult operation designed to bring the instance into reality. Heavenly Dao assigns him a thirty-minute mission to eliminate thirteen infiltrating mutants and temporarily grants access to train controls and their locations 11 13 16 21.

At the sacrificial altar, Number Two—later identified as Er Lu—summons Tang San by sacrificing lifespan. Lin Dong survives the initial hidden weapons but is poisoned and trapped before Buddha’s Fury Tang Lotus. His call for help brings Xiao Yan, who destroys the weapon and disperses Tang San’s apparition 22 23 24 25.

Er Lu’s death completes the mission. Lin Dong earns Heavenly Blessing and the hidden “Successful Survival” ending, but Xiao Yan’s intervention is classified as borrowing against the future, imposing an affinity penalty that must be repaired within three days 25 26.

Saving Bai Ruoxue and Gaining Dragon Power

After leaving the instance, Lin Dong prioritizes Bai Ruoxue’s treatment even as his own poisoned arm approaches necrosis. He gives up direct advancement to the second examination and exchanges the Hundred-Soul Affinity Pill for the Azure Dragon Fruit. Consuming it during Heavenly Blessing removes its seawater weakness and expands its future potential 27 28.

The Three-Year Agreement

Returning to Battle Through the Heavens, Lin Dong intercepts Nalan Yanran before she can publicly break her engagement at the Xiao Clan. He defeats her and Ge Ye, obtains the marriage agreement and Qi Gathering Powder, and becomes the target of her three-year challenge. He accepts after negotiating payment in the form of her ancestral Storage Ring 29 30 31.

Xiao Yan witnesses the confrontation and its physical cost. His favorability surpasses 101, establishing their enduring friendship. Lin Dong gives him the marriage agreement and Qi Gathering Powder, while Xun’er supplies Myriad Forms Chant 31 32 33.

Their exceptional affinity subsequently accelerates time within the secret realm. No fixed new ratio is established; Lin Dong recognizes that faster growth for Xiao Yan could also bring the duel much closer in real-world time 35.

Hospital Confrontation and Recruitment

When the Bai Family tries to suppress Bai Ruoxue’s injury report and divert her treatment merit, Lin Dong defeats its combined Curse Words Technique and kills the elder who threatens him. He then learns that Ruoxue’s organs and throat have suffered devastating damage 36 37 38.

His dungeon achievements and combat ability draw competing recruitment offers 39.

Recruiter	Organization	Offer or Position
Zhou Shan	Jiangdu Martial Arts School	Recruitment and support against the Bai Family 39
Liu Ruyan	Nanda Martial Arts School	Recruitment, treatment assistance, and protection; she cannot restore Ruoxue’s voice 39
Instructor Qin	Beidu Military Academy	Presents military education as the best fit for his combat talent 39
Lu Ming	Apocalypse Conglomerate	Seed Program placement, a one-million-credit subsidy, a high-paying job, and help handling the Bai Family 39

No offer is accepted before a senior Special Affairs Bureau official arrives and interrupts the competition 39.

Notable Quotes

“Xiao Yan is my little brother. Insult him, and you insult me, Lin Dong!” 2

“There's nothing wrong with being kind to others, but seek peace through compromise, and peace will perish!”
“Only through struggle! Seek peace through struggle, and peace will endure!” 2

“Fortunes change with time!”
“Don't look down on a young man just because he's poor!” 30

“Brother! Help me!” 23