He Cheng-rui

Biodata

Feature	Details
Name	He Cheng-rui (何承瑞)
Alias(es)	Yoshikage Kira — an identity he lived as during a simulation 46
Gender	Male
Age	22 at the time of his transmigration 1
Affiliation	Senba Academy (formerly); St. Freya Academy 46 95
Occupation/Role	Physics teacher; later history teacher; Valkyrie instructor and field supervisor 46 142 145
Status	Alive
First Appearance	Chapter 1: A Joyful Crossing

Power Progression

Stage / Realm / Level	Chapter	Notes
Assault-class Honkai Beast physical level	88	His physical fitness rises to match an Assault-class Honkai Beast while he focuses on protecting Mei, Kiana, and Bronya. 88
Knight-class Honkai Beast physical level	90	Reached after Mei's initial release of Herrscher power and further Honkai Energy accumulation. 90
Ballista-class Honkai Beast physical level	94	Reached after he absorbs dispersed Honkai Energy following his confrontation with the Herrscher of Thunder. 94
The World acquired; 3-second time stop	141	Obtained as a simulation reward. His initial test freezes time for three seconds. 141
Chariot-class Honkai Beast physical level	146	His body reaches Chariot-class level, though he considers his Stands more important in combat. 146
Crimson King acquired	190	Received alongside a Soul Steel mass after a simulation. Its capabilities are not described. 190
The World; 9-second time stop	283	Stops time for nine seconds to escape simultaneous restraint by Vill-V, Mobius, and Apponia. 283

Background / History

He Cheng-rui transmigrated into the Honkai world as a 22-year-old orphan living alone in a villa in Shewang Town, Changkong City. He retained knowledge of the world's future dangers and received Language Proficiency and a simulator with one remaining attempt. Upon meeting his new neighbor, Raiden Mei, he concluded that gaining strength was an immediate necessity. 1

His first major simulation placed him in the life of Yoshikage Kira. When it ended, He Cheng-rui returned with 29 years of memories, Killer Queen, the Spiral and Lovers imprints, and DIO's skull. The experience left a lasting effect on him: while he initially feared Kira's influence, he later recognized that he actively chose Kira's orderly, peaceful lifestyle. 46 141

He began work as a physics teacher at Senba Academy, where Mei became his class representative. Their relationship developed through shared meals and cooking lessons, while He Cheng-rui provided patient academic support to other students. 46 47 After Raiden Ryoma's arrest, he offered Mei protection from harassment and made his office a place where she could rest. 49 50

Kiana Kaslana and Bronya Zaychik subsequently became part of his household. He gave them, Mei, and later Bronya a stable home during the fallout from Ryoma's arrest and Cocolia's schemes. His protective role became explicit during Cocolia's assault on Senba Academy, when he fought alongside Kiana and Mei's Herrscher of Thunder awakened to save them. 88 90 91

After interrogating the Herrscher of Thunder and absorbing the Honkai Energy released after the battle, He Cheng-rui and the girls accepted recruitment to St. Freya Academy. He continued teaching there, assisted Himeko with training, supervised students in real combat, and began considering the formation of his own organization with Welt Yang as an early recruit. 94 95 142 145

Further simulations granted him additional Stands, including The World and Crimson King, while also deepening his ties to figures connected to the Previous Civilization. His experiences and remembered simulations made him wary of Otto, Elysia, and the persistent influence of his past lives. 141 157 190

Later, Vill-V, Mobius, and Apponia each placed a mark on him: a mechanical interface at his collarbone, scale-like patches at his waist, and runic scripture on his wrist. The marks inflict pain, drain him physically and mentally, and allow their owners to trace him. Hua temporarily suppresses them, but cannot remove them. 283 284 285

Appearance

He Cheng-rui is described as handsome, with an elite and composed aura associated with the Yoshikage Kira identity he experienced in simulation. His eyes are deep brown. 46 288

• Brown eyes. 288
• Often maintains a neat, deliberate appearance and routine, including regular sleep and meal preparation. 46 293
• Bears three abnormal marks: a blue mechanical interface at his collarbone, scale-like patches around his waist, and glowing runes on his right wrist. 283 288
• His physical presence can be intimidating enough to unsettle others, including Himeko during training. 142

Personality

He Cheng-rui values quiet, routine, and control. Although he entered the world focused primarily on survival, his experiences led him to consciously embrace a calm and orderly way of life rather than merely being shaped by Yoshikage Kira's influence. 3 141 He dislikes chaos and needless destruction, becoming openly annoyed when others create avoidable problems. 282 292

He is pragmatic and often coldly strategic in dangerous situations. He interrogated the Herrscher of Thunder through an illusion, exploited her desire to live for information, and refuses to romanticize suicidal resistance in battle. 94 142 His preferred lesson is survival: retreating from an unwinnable fight is wiser than dying pointlessly. 142

Despite his guarded nature, He Cheng-rui is consistently attentive toward his students and companions. He feeds, teaches, protects, treats injuries, and creates a home for Mei, Kiana, and Bronya. He can be strict, but his concern is genuine. 47 89 91 Prolonged strain can overwhelm his composure, as shown when the competing plans of Vill-V, Mobius, and Apponia finally provoke an outburst. 292

Abilities & Skills

Simulator

He Cheng-rui possesses a simulator that lets him experience alternate lives and receive rewards after a simulation ends.

• Retains extensive memories from simulated lives, including 29 years from his Yoshikage Kira simulation. 46
• Receives Stands, imprints, emblems, items, and lottery draws as rewards. 46 84 141 190
• His first recorded post-simulation cooldown was 90 days. 46
• Simulated experiences can alter his mannerisms, knowledge, relationships, and approach to reality. 46 141

Honkai Energy Absorption and Enhanced Physique

He Cheng-rui strengthens his body by absorbing Honkai Energy, particularly through interactions involving Herrscher Cores and major Honkai events. 47 94

• Progressed from Assault-class to Chariot-class Honkai Beast physical strength. 88 90 94 146
• Can absorb dispersed Honkai Energy on a large scale, preventing a major outbreak in Changkong City. 94
• Despite his exceptional physique, St. Freya's equipment detected zero Honkai Energy within him after the Changkong City incident. 94
• Considers physical strength secondary to his Stand abilities in serious combat. 146

Killer Queen

Killer Queen was his first recorded Stand reward and remains one of his primary offensive tools. 46

• Destroys surveillance equipment without leaving ordinary evidence. 143
• Causes attacking Honkai Beasts to explode instantly. 148
• Can remove Bronya's implanted control chip. 90
• Can be combined with The World to attack during stopped time. 141 283
• He considers proximity and personal durability important because he must survive long enough to activate it against powerful enemies. 92

White Snake and Illusion Techniques

White Snake acts as both a Stand and an adviser during He Cheng-rui's investigations and confrontations.

• Assists in verifying whether an interrogated target is lying. 94
• Helps He Cheng-rui monitor threats connected to Mei and the Herrscher of Thunder. 89 93
• He Cheng-rui can trap opponents in illusions and interrogate them within those mental spaces. 93 94
• He can create a dreamscape in which a person may live an ideal life until they choose to awaken. 154

The World

The World grants He Cheng-rui the ability to stop time. 141

• Initially stopped time for three seconds. 141
• Later sustained a nine-second time stop while escaping Vill-V, Mobius, and Apponia. 283
• Allows him to reposition, sabotage equipment, and act against opponents before time resumes. 282
• He used it during Kiana's sparring lesson to demonstrate the danger of relying on a single fighter. 145

D4C and Dimensional Travel

He Cheng-rui can use D4C to interact with parallel-world counterparts and transfer objects or restraints across worlds.

• Transferred Apponia's chains to a parallel-world version of himself to escape restraint. 283
• Can use Pass Through the Dark Gate to travel rapidly to distant locations or retreat through shadows. 282 283
• Considered fleeing to parallel worlds, but the pain caused by his marks made this impractical. 290

Combat Instruction

He Cheng-rui is an effective instructor despite initially presenting himself as an ordinary academic teacher.

• Possesses physics expertise enhanced by the Spiral imprint. 47
• Assists Himeko in training Valkyries and supervises practical combat exercises. 142 145
• Evaluates squads, intervenes when students lose the will to fight, and teaches through direct sparring. 145
• Emphasizes survival, adaptability, teamwork, and knowing when to retreat. 142 145

Equipment / Items

• DIO's skull — received from a lottery draw; He Cheng-rui initially did not know its use. 46
• Stone Mask — acquired after a 103-year simulation; he considered becoming a vampire but rejected it as insufficient preparation against Otto. 84 95
• Soul Steel — a responsive material that can cover his body as a thin protective film. 190
• Mechanical interface, biological scales, and runic mark — imposed by Vill-V, Mobius, and Apponia respectively; these function as painful, persistent tracking marks rather than voluntary equipment. 283 288

Relationships

• Raiden Mei — Student, neighbor, and close companion. He teaches her cooking, protects her after her father's arrest, and reassures her that his concern is for Mei herself rather than her Herrscher Core. 46 47 90
• Kiana Kaslana — Student and surrogate daughter figure. He feeds, shelters, trains, and protects her; Kiana once mistook him for her father when he woke her for breakfast. 48 91 145
• Bronya Zaychik — Student and household member. He removes her control chip after she breaks with Cocolia and later supports her alongside Mei and Kiana. 90 91
• Himeko Murata — Fellow instructor at St. Freya. She recruits him as a training assistant and relies on him to supervise student combat exercises. 142 145
• Theresa Apocalypse — St. Freya's principal and a trusted ally. She accepts Wendy at He Cheng-rui's request and works with him despite frequent disagreements. 95 159
• Welt Yang — Ally and early recruit for the organization He Cheng-rui intends to establish. 142
• Wendy — A Herrscher he helps stabilize and bring into St. Freya, acting as a mentor-like protector. 159
• Elysia — A figure from his simulated past with a deep, unresolved bond to him. She later returns and promises to face the consequences of his past alongside him. 191 291 292
• Hua — His childhood friend in a simulation and a powerful current ally. She cannot fully recognize him due to memory loss, but later suppresses the dangerous marks placed upon him. 125 142 285
• Yae Sakura — An ally who protects and tends to him while he shelters at Mount Tai Xu. 283 284
• Otto Apocalypse — A powerful and unsettling acquaintance whom He Cheng-rui distrusts. Otto repeatedly probes him while concealing her own intentions. 157 193
• Anna Schariac — A Valkyrie acquaintance whom he assists during the Manila Honkai outbreak; he takes half her necklace as the stated price for saving the Snow Lotus Squad. 148 154

Notable Quotes

“Run if you can't win. That's the first lesson they need to learn.”
— He Cheng-rui 142

“Because you are Mei, that's all.”
— He Cheng-rui 90

“The road ahead is still long, Kiana.”
— He Cheng-rui 145