Biodata

Feature Details
Name Baichen (白辰)
Gender Male
Origin Another world; transported to Inazuma 1
Affiliation Inazuma; resides at Tenshukaku under Ei’s protection 1 9
Occupation/Role Inazuma’s “special adviser”; studies government affairs under Ei and later travels to Liyue as Inazuma’s representative 9 14 20
Power Source System rewards, elemental training, and weapon practice; initially possesses neither a Vision nor detectable elemental power 1 13
Status Alive; visiting Liyue with Ei in the latest provided chapter 49
First Appearance Chapter 1 1

Power Progression

Stage / Realm / Level Chapter Notes
Unpowered outlander 1 Arrives without a Vision or detectable elemental power. The Love Treasure System activates and offers beginner Electro resistance for raising Ei’s affection to 10%.
Electro resistance acquired 3 Refers to resistance gained the previous day when approaching Tatarasuna’s electrically charged waters.
Elemental Resonance — Electro 3 A temporary buff activates in an exceptionally high concentration of Electro; pale-purple lightning appears at his fingertips.
Electro Absorption — Basic 3 Initially unlocks temporarily while fighting phantoms, then becomes an acquired skill after the battle.
Electro Affinity — Intermediate 3 Awarded when Ei’s affection reaches 20%.
Swordsmanship talent; proficiency +15% 10 Selects a system reward that imprints sword movements, force application, and rhythm into his memory; subsequent training grants additional proficiency.
Government affairs handling +10% 10 Earned while learning document processing directly from Ei.
Electro Affinity — Intermediate, listed again 11 The system announces the same affinity tier again when Ei’s favorability reaches 52%; pale-purple markings briefly appear on his skin.
Basic Elemental Concealment 11 Uses his Electro affinity to reduce his presence by 30% while moving through shadows.
Electro Resistance — Advanced 11 Unlocked after Ei reinforces the Electro mark on his ear and reaches 56% affection.
Adversity Burst — Temporary 13 Strong emotions during a difficult spar improve his agility, allowing him to withstand Ei’s attacks for another five minutes. The session also grants swordsmanship experience +20%.
Electro Arrow 13 Unlocks after a week of practice when he successfully imbues an arrow with Electro.
Electro-Charged Reaction 13 The system names the skill after he combines his Electro with Ganyu’s Cryo, producing an electrically charged ball of ice.
Overall combat power — C+ 13 Recorded abilities: Swordsmanship LV.32 (+15%), Archery LV.25 (+10%), and Electro Control LV.41 (+20%). Receives armor and begins Tenryou Commission combat drills.
Overall combat strength — B− 14 Reached after completing a combat drill against Kujou Sara and evading her final Electro arrow.
Overall combat strength — B 14 His first Snezhnaya status panel records Electro Mastery LV.45 and Cryo Mastery LV.15.
Overall combat power — B+ 15 Training with Bronya raises Electro Mastery to LV.47 and Cryo Mastery to LV.25. Practices Cryo shaping and combat techniques.
Emblem of Ice — Cryo affinity enhancement 17 Bronya’s temporary elemental markings enhance his Cryo affinity; the system identifies them as harmless.
Cryo resistance — Advanced 18 Confirmed as a system exchange; makes Bronya’s previously visible ice markings turn transparent.
Overall combat power — A− 18 Recorded abilities reach Electro Control LV.49 and Cryo Mastery LV.32. Continues practicing Cryo during the return voyage.
Increased Electro resistance and skill power 40 Receives a quest reward following Makoto’s return; exact increases are not specified.
Thunder Smite sword techniques 42 After an afternoon of instruction from Ei, can approximately perform a complete set independently.
Temporary charm enhancement 47 48 The system links increased charm to his elevated addiction index and restricted activity. Its attraction effect is observed to work on women rather than men.

Background / History

Arrival in Inazuma

Baichen awakens beside a stream in soaked pajamas, with an injured right ankle, after being transported from his world. His recognition of Ei comes from a game, but he conceals his otherworldly origin when she questions him. Ei takes him to Tenshukaku, heals his injury, and places him under her supervision. Yae Miko subsequently notices traces of his passage through time and space 1.

During an expedition to Tatarasuna, Baichen fights beside Ei against Electro phantoms. Although inexperienced, he learns to absorb their attacks and lingering energy, preventing some from reforming. He also pulls Ei away from a falling boulder after a Tatarigami crystal explodes 3.

His unusual position soon attracts attention beyond Tenshukaku. La Signora ambushes him during an outing in Inazuma City, prompting intervention from Miko and the Raiden Shogun 4.

Ayaka’s Captivity

A tea party at the Kamisato Estate becomes a staged escape operation. After crossbow bolts strike the gathering, Baichen falls through a trapdoor; Yoimiya guides him through a passage to a secluded villa, where Ayaka reveals that she arranged the deception 6.

Ayaka confines him with restraints and drugs while controlling his meals, clothing, lessons, and personal care. Baichen remains frightened but begins associating her attention with belonging, eventually recognizing that he is becoming accustomed to captivity 7 8.

The Raiden Shogun breaks into the villa and frees him. Physicians diagnose mild dehydration, malnutrition, and a lingering drug that suppresses elemental power. Back at Tenshukaku, Baichen moves beside Ei’s room and begins regular swordsmanship and government studies under her supervision 9.

Training and Watatsumi Diplomacy

Ayaka’s scented ear stud continues affecting Baichen after his rescue. Miko identifies its fragrance as Camellia Love and supplies an antidote, while Ei’s Electro mark relieves his withdrawal discomfort. Completing the antidote treatment also increases the sensitivity of Ei’s mark 10 11 12.

Kokomi later asks Baichen to carry Watatsumi’s trade proposal and intelligence about Fatui deployments to Ei. He delivers the documents, and the intelligence is verified as largely accurate, but Ei chooses someone else for the proposed peace-envoy role 13.

Baichen’s routine expands to swordsmanship with Ei, archery with Kujou Sara, and elemental control with Ganyu. His improvement comes from both sustained practice and system rewards, giving him his first realistic prospect of protecting himself 13 14.

First Visit to Snezhnaya

Bronya invokes an old promise owed by Ei to secure Baichen’s visit to Snezhnaya. Ei permits a two-week stay with guards and daily reports, but Zapolyarny Palace’s ice-crystal walls block his reporting talismans, and his guards remain outside the palace 14.

Bronya teaches him Cryo while becoming increasingly possessive. Baichen worries as the system reports Ei’s falling affection, and his situation worsens after Bronya leaves elemental marks on him. He returns to Inazuma aboard the Aurora, escorted by Arlecchino 15 16 17 18.

First Visit to Liyue

Ningguang invites Baichen to Liyue as Inazuma’s representative. Ei approves the trip with guards, daily reports, and a two-week limit 20 21.

The visit exposes him to further coercive attention. Yelan gives him hypnotic tea and kisses him while he sleeps; Ningguang later attempts to keep him at the Jade Chamber. Baichen escapes using Yoimiya’s firework and receives overnight shelter from Yun Jin, but Ningguang subsequently binds a tracking ring to his finger 24 26.

Ei ultimately intervenes in Jueyun Karst and brings him home. At Tenshukaku, she treats his injuries, destroys his Liyue belongings, and reassures him that he does not have to face trouble alone 28.

Three-Day Return to Snezhnaya

When Bronya’s renewed demands threaten conflict with Inazuma, Baichen considers returning to prevent war. Ei reluctantly agrees to a three-day visit and equips him with protective gifts 32 33.

Bronya sedates him during the voyage, later removes his protective magatama, and pressures him to remain in Snezhnaya as a Harbinger. Despite enjoying parts of their time together, Baichen remains conscious of his promise to Ei. Bronya eventually returns the magatama and permits him to leave 33 34 35 36 37.

At the harbor, The Doctor attempts to seize him for his laboratory. Ei attacks to free Baichen, while Bronya orders The Doctor to leave him alone and arranges his passage home 37.

Restoring Ei’s Companions

Baichen helps bring Raiden Makoto back, enabling her reunion with Ei after five hundred years. He conceals the system’s involvement by claiming that he used a mysterious, powerful artifact 40.

He later breaks a Resurrection Ball near the Thunder Sakura behind Tenshukaku, reviving Kitsune Saiguu. Ei reassures him that she is not angry about the revival, and Saiguu joins the group’s daily life 45 46.

Second Journey to Liyue

The system warns that Baichen’s limited activity and dependence on Ei and Makoto have raised his addiction index. He arranges to travel with Lumine, then leaves secretly aboard Hu Tao’s ship with Lumine and Paimon 47 48.

Ei follows him to Liyue. Rather than immediately taking him home, she listens to his wish to broaden his horizons and improve himself, then accompanies him around the harbor. They receive an invitation to a banquet welcoming a Mondstadt delegation, and Ei plans to take him to meet Ningguang the next day 49.

Appearance

Baichen is a young man with a fair, later described as jade-white, complexion. His clothing changes with his hosts, frequently displaying Inazuman lightning motifs or Snezhnayan ice-crystal designs 2 16 49.

  • Inazuman clothing: Often wears dark-blue kimono, including garments with silver thunderclouds or lightning embroidery 2 4.
  • Ear markings: Initially wears Ayaka’s Kamisato-crest stud on the left and Ei’s Electro-infused bite mark on the right 9 10.
  • Temporary Cryo markings: Bronya leaves ice patterns on his chest and neck; these gradually fade after his first return to Inazuma 17 18 21.
  • Later earrings: Wears Bronya’s Cryo-resistant earring together with Ei’s Thunder Sakura earring 37.

Personality

Baichen is initially nervous around authority and easily embarrassed by romantic attention. Even while unfamiliar with his status at Tenshukaku, he thanks the servants and prefers to dress himself. He also speaks honestly when pressed: Ei approves of his willingness to defend his own view, and he admits uncertainty rather than promising never to leave her 2 3.

His fear does not prevent impulsive acts of concern. He repeatedly tries to protect Ei at Tatarasuna and later risks returning to Snezhnaya to avert conflict. During training, being called weak hurts his pride enough that he picks up his sword and demands another attempt 3 13 32.

Affection and captivity leave him with conflicting feelings. He recognizes Ayaka’s coercion yet struggles to dismiss the comfort of being needed. His growing attachment to Ei and Makoto likewise competes with his desire for independence: he longs to explore and improve, but finds leaving their care emotionally difficult 8 9 48 49.

Abilities & Skills

Love Treasure System

The system assigns relationship-based quests, tracks affection, and awards abilities and items. It is also called the Romance Reward System and, later, the Succubus Romance System 1 10 28.

  • Quests and exchanges: Supplies rewards ranging from elemental resistance to swordsmanship talent and administrative proficiency 1 10 18.
  • Threat and status analysis: Detects ingested drugs, evaluates danger, and identifies elemental markings 7 16 17.
  • Daily check-in and inventory: Unlocks check-in rewards and stores items such as blazing ore 34 35.
  • Navigation: Plans a route from Tenshukaku to the Adventurers’ Guild during his secret departure 48.
  • Secrecy: Baichen conceals its existence from others, including when explaining Makoto’s return 28 40.

Electro Manipulation

Baichen develops Electro control despite arriving without a Vision 1 13.

  • Absorption: Intercepts Electro phantom attacks and absorbs residual energy that could otherwise allow the phantoms to reform 3.
  • Weapon infusion: Channels Electro through arrows and his short blade 13 28.
  • Concealment: Reduces his presence by 30% while moving in shadows; it does not make him invisible 11.
  • Resistance: Gains system-assisted protection against Electro, later strengthened by another quest reward 11 40.

Cryo Manipulation

Bronya teaches Baichen to regulate Cryo and shape it into physical forms 15.

  • Shaping: Produces small ice crystals and, under guidance, a crystalline short sword 15 18.
  • Combat training: Practices simplified versions of Bronya’s ice-spike and ice-mist techniques 15.
  • Elemental combination: Combines his Electro with Ganyu’s Cryo during supervised training 13.
  • Limits: Cryo use consumes stamina. Advanced Cryo resistance does not make him immune to Snezhnaya’s climate; he still suffers mild frostbite during his later visit 15 18 35.

Swordsmanship and Archery

System-granted talent supplements repeated practical instruction rather than replacing it 10 13.

  • Swordsmanship: Trains with wooden and real swords under Ei, eventually learning the Thunder Smite sequence 10 11 42.
  • Archery: Learns stance and targeting from Kujou Sara before progressing to Electro-infused arrows 13.
  • Adversity Burst: Temporarily improves his movements under emotional pressure, but does not enable him to defeat Ei 13.

Government Affairs

Ei teaches Baichen how to process official documents and prepares him to serve as a capable assistant 9 10.

  • Administrative proficiency: Receives a quantified 10% improvement through the system 10.
  • Diplomatic participation: Carries Watatsumi’s proposal and intelligence to Ei, then travels to Liyue as Inazuma’s representative 13 20.

System-Assisted Resurrection

Baichen uses system-linked resources to restore deceased figures rather than demonstrating an unrestricted innate resurrection power 40 45.

  • Raiden Makoto: Returns with Baichen’s help; he hides the system’s involvement behind an artifact story 40.
  • Kitsune Saiguu: Revived by breaking a Resurrection Ball near the Thunder Sakura 45.

Temporary Charm Effect

An enhanced-charm state makes women unusually attentive to Baichen 47 48.

  • Observed effect: Kujou Sara’s favorability rises from 40% to 75%, and women stare at him in the street 47.
  • Observed limit: A male shopkeeper reacts normally, leading Baichen to conclude that the effect works only on women 48.
  • Risk: The system warns that excessive charm can create dangerous situations 47.

Equipment / Weapons / Items

Weapons and Training Gear

  • Electro-infused short blade — Given by Ei before his first Liyue trip; later used to channel lightning during practice 21 28.
  • Conductive armor — Lightweight, sturdy armor whose lining improves Electro transmission 13.
  • Miko’s Strength Bracer — Black, fox-patterned bracer that strengthens his arms; Ei checks it for traps before he wears it 11.
  • Specially made kendo attire — Ei’s clothing gift provides Electro affinity +10% 18.

Protection and Communication

  • Electro Sigil and authorized passes — Permit movement within Tenshukaku and approved outings 1 4 12.
  • Electro Archon’s Talisman — Can release one full-power strike from the Raiden Shogun; also conveys Ei’s distant message during his first Snezhnaya stay 14 16.
  • Electro-Patterned Magatama — Resists Bronya’s Cryo and provides a means of contacting or summoning Ei. Bronya confiscates it during his second visit, then returns it before departure 33 34 37.
  • Thunder Sakura and Cryo-resistant earrings — Gifts from Ei and Bronya that are worn together after his second return from Snezhnaya 32 37.
  • Kokomi’s conches — Receives one to ease mark sensitivity and later an improved communication conch 13 21.
  • Ganyu’s peace bell — A protective Liyue gift with a slight luck increase 12.
  • Protective jade pendant — Given by Ei during their birthday-day sword practice 42.

Consumables and Escape Tools

  • Camellia Love antidote — Miko’s powder gradually removes the fragrance’s influence, with increased sensitivity to Ei’s mark as a side effect 11 12.
  • Yoimiya’s fireworks — Receives several experimental fireworks; uses one to escape Ningguang at the Jade Chamber 20 21 26.
  • Blazing ore — Check-in reward that emits heat for six hours within a one-meter range; insufficient by itself for Snezhnaya’s extreme cold 35.
  • System essential oils — Used during a group hot-spring visit to strengthen elemental affinity 46.

Coercive Gifts

  • Kamisato-crest ear stud — Releases Ayaka’s Camellia Love fragrance, influencing his feelings and causing withdrawal discomfort when removed 9 10 11.
  • Bronya’s snowflake pendant — A tracking gift confiscated on his return to Inazuma; still held by Kujou Sara when he prepares for Liyue 18 20 21.
  • Ningguang’s gold-and-jade ring — Forcibly binds to his finger and enables her to track him 26.

Relationships

  • Raiden Ei — Protector, principal teacher, and lover. Their relationship progresses from supervision to an openly recognized partnership at Tenshukaku; her affection reaches a stable 100%. Her care remains strongly possessive, while Baichen increasingly treats her as home 1 9 31 32 37.
  • Raiden Shogun — The separate, mechanically mannered figure whom Baichen initially mistakes for Ei when summoned from Yae Publishing House 29.
  • Kamisato Ayaka — Captor and persistent romantic pursuer. Baichen’s feelings remain complicated by the contrast between her intimate care and her restraints, drugs, and attempts to claim him 7 8 9.
  • Yae Miko — Teasing benefactor who provides warnings, protection, medicine, and antidotes. She also circulates embellished fiction about his romantic experiences 4 5 9 11 20 29.
  • Kujou Sara — Escort and archery instructor. She combines strict supervision with practical concern for his safety; his later charm enhancement sharply increases her attraction to him 9 13 18 47.
  • Sangonomiya Kokomi — Secret contact and would-be diplomatic intermediary. She supplies intelligence and useful gifts while asking him to help connect Watatsumi with the Shogunate 11 13 21.
  • Ganyu — Elemental-control teacher, prospective Liyue guide, and concerned supporter. Her breathing exercises and meditation instruction become part of his training routine 12 13 16 24.
  • Bronya — Cryo teacher and possessive pursuer who pressures him to remain in Snezhnaya as a Harbinger. His attraction to her gentler side conflicts with his fear of her coercion and loyalty to Ei 15 34 35 36.
  • Ningguang — Liyue host whose invitation becomes an attempt to retain and track him. Her actions lead to Ei’s intervention and a diplomatic apology to Inazuma 20 26 28.
  • Yelan — Flirtatious caretaker who violates his trust by drugging his tea and kissing him while he sleeps 24.
  • Yoimiya — Friendly supplier of gifts and fireworks. She participates in the escape route arranged by Ayaka, while one of her later fireworks helps him escape Ningguang 4 6 21 26.
  • Yun Jin — Provides refuge after his Jade Chamber escape, treats his injured lips, and lets him sleep in the opera troupe’s courtyard 26.
  • Lumine and Paimon — Travel companions for his second Liyue journey. Lumine agrees to accompany him after finishing her Inazuma commissions 18 47 48.
  • Hu Tao — Helps him leave Inazuma aboard a Liyue-bound ship despite recognizing that he is lying about Ei’s permission 48.
  • Raiden Makoto — Revived through his help; becomes an affectionate companion and romantic pursuer who asks him to continue loving both her and Ei 40 41.
  • Kitsune Saiguu — Revived with his Resurrection Ball and subsequently joins him, Ei, Makoto, and Miko in their shared outings 45 46.
  • Arlecchino — Helps him prepare for Bronya’s banquet, allows him to retain Ei’s amulet, and escorts his first return voyage to Inazuma 16 18.
  • The Doctor / Dottore — Dangerous pursuer who measures his changing elemental affinity and later attempts to take him to a laboratory 16 37.

Appearances

2,125
Total Mentions
50
Chapters Appeared
42.5
Avg. per Chapter