Biodata

Feature Details
Name Bai Ye (䲾夜)
Species/Race Human; a transmigrator from Earth 1
Gender Male
Affiliation Liyue; Liyue's Liaison Envoy; the Akademiya's Logic School 58 271
Occupation/Role Former bounty hunter; special envoy between Liyue and the Adepti; automaton engineer 1 63 103
Status Active 341
First Appearance Chapter 1

Power Progression

Stage / Realm / Level Chapter Notes
Anemo Vision, Adeptal Arts, and Art of Automata 1, 13 Arrives in Liyue with a wind-element Genshin Eye and relies chiefly on mechanisms; cultivates Adeptal Arts to improve his physical capabilities and composure.
Karmic-debt and Archon-Residue absorption 74, 109 Absorbs Xiao's karmic debt, though doing so leaves him severely exhausted; later confirms that his innate constitution can also absorb Archon Residue.
Emet's authority — Healing Wind 115 Takes Emet's authority from its heart, allowing him to control and store life force. His Healing Wind heals wounds and restores stamina.
Abyss suppression 125 His power is incompatible with Abyss power and can suppress or remove it, though early use causes severe pain.
Asmodeus's authority 140 Absorbs Asmodeus's authority and frees her from torment; Zhongli provides a jade pendant to house her remnant soul.
Orobas's authority and combat intuition 160, 184 Absorbs Orobas's memories and later uses Orobas's authority as a premonition of danger, granting combat intuition.
Heavenly Principles' sword 160 Receives a longsword from the Heavenly Principles Sustainer; it channels his Abyss-suppressing power without the earlier painful feedback.
Makoto and Raiden Ei's authority — Dreamy Musou 175, 176 Gains access to their lightning authority and wields Dreamy Musou, which can be stored within and drawn from his body.
Apep's Dendro elemental power 331 Absorbs the Grass Dragon's pure elemental energy under Zhongli's guidance, substantially strengthening his Dendro power and overall elemental capacity.

Background / History

Bai Ye was an Earth student before falling from a twentieth-floor building and transmigrating to Teyvat. He possessed no system or newly awakened power upon arrival, but encountered a severely weakened Archon remnant soul in a Serenitea Pot. The soul, initially known to him as Hagintos, taught him everything she could remember of Adeptal Arts and the Art of Automata. Bai Ye consequently treats restoring and protecting her as his foremost priority. 1 11

A month after arriving in Liyue Harbor, he had established himself as an exceptionally productive bounty hunter. His mass captures of Treasure Hoarders dismantled several gangs and made him a familiar figure among local bounty hunters, while nearly all of his earnings went toward acquiring Floating Stones to sustain Hagintos. 1

Zhongli eventually identifies Hagintos as Guizhong and regards Bai Ye as her successor. Though Bai Ye initially hides his teacher's existence and fears Zhongli's scrutiny, Zhongli arranges his appointment as Liyue's Liaison Envoy and quietly enlists the Adepti to teach and protect him. 58 60 103 126

Appearance

Bai Ye initially appears to be a young teenager, roughly fourteen or fifteen years old. He has a slender build and is notably shorter than many of his opponents. 1 177

  • Platinum-blonde or white long hair, tied in a high ponytail. 1 338
  • Two long temple strands and slanted bangs. 1
  • Tight-fitting clothing and long boots. 1
  • A wind-element Genshin Eye set into his right-hand glove. 1
  • Commonly carries a sword and crossbow, though he is better known for mechanisms than conventional swordplay. 1
  • His appearance produces an unusual, non-Adeptal attraction in others; Bai Ye himself does not recognize this change. 102 104

Personality

Bai Ye is highly competitive, resourceful, and pragmatic. As a bounty hunter, he routinely pursued far more targets than necessary, partly to finance Floating Stones for Hagintos. He is also an adept negotiator, as shown when he accepts Yelan's investigation job only after securing additional payment. 1 3

His ambition extends beyond personal wealth. He envisions universally accessible transportation, railways, and industrial development that could reshape Liyue and eventually the Seven Nations. When work captures his interest, he neglects rest and becomes completely absorbed in design. 14

Despite his bravado, he is deeply protective of his teacher and willing to endure pain or exhaustion to help others. His willingness to absorb karmic debt, Archon Residue, Abyss power, and Albedo's corruption repeatedly places him at risk. 74 134 224

Bai Ye acknowledges his shortcomings in direct combat and swordsmanship rather than pretending otherwise. He compensates through flexible thinking, layered tools, and a willingness to seek aid when necessary. 169 176 177

Abilities & Skills

Art of Automata

Hagintos's teachings allow Bai Ye to design and operate mechanisms for combat, transport, construction, and research. 1 14

  • Uses mechanical crossbows and contraptions to subdue Treasure Hoarders and Fatui soldiers. 1 7
  • Employs grappling lines, silk threads, flying blades, and automaton arms in battle. 54 65 185
  • Plans machinery for long-distance transport, universal teleportation, railways, and trains. 14
  • His automaton expertise becomes central to the proposed rebuilding of Guili Plains. 83 103
  • Cloud Retainer can interfere with or destroy his mechanisms within her own grotto-heaven. 65

Anemo Manipulation

Bai Ye's wind-element Genshin Eye enhances his mobility and mechanisms. 1

  • Enhances crossbow attacks with Anemo energy. 7
  • Uses wind to propel himself and create wings for flight. 115 175
  • Infuses Adeptal Arts with Anemo power during close combat. 65

Adeptal Arts

Bai Ye cultivates Adeptal Arts alongside his mechanical studies, improving his strength, speed, durability, and mental focus. 13

  • Uses talismans and silk threads to bind corrupted souls and enemies. 169
  • Carries a Hundred-Binding Scroll for defensive restraint techniques. 65
  • Can create elemental seals and imprison powerful opponents, including La Signora. 54 77

Purification and Absorption Constitution

Bai Ye's innate constitution lets him absorb harmful supernatural forces that others cannot safely handle. 109

  • Absorbs Xiao's karmic debt, reducing its burden but initially leaving himself exhausted. 74 77
  • Purifies Archon Residue and malevolent aura. 83 109
  • Suppresses and removes Abyss power, including corruption within Albedo and Scales of Corruption patients. 125 134 255
  • Can absorb Archon authority, memories, and elemental energy. 115 140 160 331
  • High-output purification can cause extreme pain, fatigue, or temporary overdraft. 134 161

Healing Wind and Life-Force Control

Through Emet's authority, Bai Ye can manipulate life force. 115

  • Heals physical wounds and restores stamina through Healing Wind. 115
  • Drains life force from creatures empowered by Emet's authority. 115 116
  • Stores substantial vitality in his body and uses it to recover after overexertion. 116 161
  • Plans to use life force as one component of Guizhong's eventual new body. 115 134

Swordsmanship and Lightning

Bai Ye gains Dreamy Musou and learns to control lightning after receiving Makoto and Raiden Ei's authority. 175 176

  • Can summon and store Dreamy Musou within his body. 176
  • Uses lightning formed from his authority in combat. 176
  • Receives foundational instruction in both Inazuman and Liyue sword forms from Ei. 176
  • His technical sword talent is only slightly above average, but Ei recognizes his exceptional adaptability and combat intelligence. 176 177

Equipment / Weapons / Items

  • Wind-element Genshin Eye glove — Bai Ye's right-hand glove, fitted with his Anemo Vision. 1
  • Crossbow — A standard part of his early bounty-hunting equipment, often enhanced with Anemo. 1 7
  • Mechanism sword hilt — A disguised mechanism meant to confuse enemies expecting traditional swordsmanship. 161
  • Dreamy Musou — Makoto's sword, wielded by Bai Ye after he gains the Raiden sisters' authority. 175 176
  • Heavenly Principles' sword — A longsword gifted by the Heavenly Principles Sustainer that channels his Abyss-suppressing ability. 160 176
  • Jade pendant — Given by Zhongli to hold Asmodeus's remnant soul; later also houses other Archon remnants. 140 160
  • Serenitea Pot — Given for Bai Ye through Grandma Yu; used to store materials and equipment. 84 116
  • Hundred-Binding Scroll and talismans — Adeptal tools for binding and restraining enemies. 65 169

Relationships

  • Hagintos / Guizhong — His teacher and the Archon remnant soul who first aided him in Teyvat. Bai Ye devotes himself to sustaining and eventually restoring her body. 1 11 134
  • Zhongli — Guizhong's closest confidant and Bai Ye's protector, patron, and mentor. Zhongli appoints him as Liaison Envoy, views him much like a son, and guides his growth. 58 60 111 126
  • Xiao — Comrade in clearing Archon Residue. Bai Ye absorbs Xiao's karmic debt and later heals him with Healing Wind. 74 109 115
  • Hu Tao — Close friend and frequent sparring partner in verbal banter. She is protective of Bai Ye and later becomes romantically involved with him. 41 125 296 332
  • Shenhe — Initially assigned as his bodyguard by Cloud Retainer; she becomes fiercely protective of Bai Ye and later enters a romantic relationship with him. 77 79 332
  • Yelan — Investigator and early employer who recruits Bai Ye for a Fatui case. Their relationship is built on cooperation, teasing, and mutual respect. 3 7 249
  • Cloud Retainer — Initially attacks Bai Ye after mistaking him for a fraud, then becomes remorseful after learning that he is Guizhong's disciple. 65
  • Raiden Ei — Ally and swordsmanship instructor who teaches him Inazuman and Liyue sword basics after he obtains her authority. 176
  • Albedo — Fellow researcher whom Bai Ye helps by purging Abyss power; Albedo shares the Art of Black Soil in return. 134
  • Klee — A young ally who assists Bai Ye in flattening Guili Plains for construction. 125

Story Role / Major Arcs

Bounty Hunter and Fatui Investigation

Bai Ye begins as a Liyue bounty hunter renowned for capturing Treasure Hoarders in large groups. Yelan recruits him to investigate Fatui activity linked to the Feiyun Commerce Guild, leading the pair into an Adeptal mechanism labyrinth. 1 3 7

Rite of Descension and Liyue Envoy

During the chaos following Rex Lapis's apparent assassination, Bai Ye helps preserve order, fights Tartaglia alongside Yelan, and uses Guizhong's Art of Automata against La Signora. He is subsequently named Liyue's Liaison Envoy, placing him between the Qixing and the Adepti. 55 58 63

Guili Plains Reconstruction

Bai Ye secures the Qixing's support to clear Archon ruins and rebuild Guili Plains in exchange for Floating Stones. Zhongli and the Adepti quietly position him as the human figure most capable of leading the reconstruction through automation and new infrastructure. 83 103

Archon Residue Purification

Bai Ye's work with Xiao reveals his ability to absorb karmic debt and Archon Residue. In Guyun Domain, he claims Emet's authority and develops Healing Wind, transforming his role from engineer and envoy into a key solution for Teyvat's lingering divine pollution. 109 115 116

Inazuma Campaign

Bai Ye resolves corruption related to Orobas, receives aid from the Heavenly Principles Sustainer, rescues Inazuman figures lost to the darkness, restores Makoto's remnant consciousness, and trains under Raiden Ei. His actions contribute to Inazuma's reopening after the Sakoku Decree is lifted. 160 175 176 184

Sumeru Journey

In Sumeru, Bai Ye treats victims of the Scales of Corruption, works with Chang Sheng on medicine, adopts disguises to enter Dottore's workshop, and uses his purification ability to help Collei. He later absorbs Apep's elemental power with several Archons supporting Zhongli's transfer method. 255 266 331

Fontaine Arrival

After traveling north with Guizhong, Bai Ye reaches Fontaine and encounters Lyney and Furina. He tests Furina's judgment by presenting her with a public dispute outside a bar. 332 340 341

Trivia

  • Bai Ye spends most of his early bounty income on Floating Stones rather than personal comforts. 1
  • He wants to grow taller, but even vast reserves of life force and later Dendro energy fail to increase his height. 245 331
  • Although he owns several powerful swords, he initially rates his swordsmanship as comparable to ordinary Treasure Hoarders. 176
  • He intends to use technology to make transportation accessible to ordinary people rather than exclusive to elite groups. 14