Biodata

Feature Details
Name Mei (芽衣)
Gender Female
Affiliation St. Freya Academy; Team 233
Occupation/Role Valkyrie; Team 233’s primary close-combat fighter and leader
Status Active
First Appearance Chapter 1

Power Progression

Stage / Realm / Level Chapter Notes
B-rank Valkyrie 7 Had held B-rank for a semester but considered herself far from A-rank.
Four-star Stigmata user 7 8 Ling Feng manually imprinted a four-star Attila (B) Stigmata, greatly enhancing her physical combat ability.
Third Herrscher power awakened 14 Released her restrictions to destroy an Emperor-class Honkai Beast with lightning attacks, then lost consciousness.
Controlled Conquest Gem user 51 52 Began channeling lightning without fully entering Herrscher form; developed the Thunder Shadow Blade technique.
A-rank Valkyrie 117 Advanced alongside Kiana after training under Ling Feng and Fu Hua; Kiana yielded the first-place designation to Mei.
A+-class strength 180 Considered herself at A+ strength after receiving two five-star and one four-star Stigmata.
Pseudo-Herrscher 225 Could activate the Conquest Gem and access some Herrscher abilities without immediate loss of control, though transformation remained a last resort.

Background / History

Mei was a top student before becoming a Valkyrie and continued to rank first academically at St. Freya Academy. She became Team 233’s strongest conventional combatant, its gentlest member, and the apartment’s best cook. She initially fought with an ordinary Muramasa Katana and relied on skill rather than specialized equipment. 4 5 18

Her father, Ryoma, was president of ME Company before Cocolia framed him for economic fraud and forged financial documents. He was removed by the board and imprisoned. Mei also states that Cocolia modified her body into that of a Herrscher. Determined to prove her father’s innocence, Mei resolved to become an S-rank Valkyrie. 16 17

Mei’s first major Herrscher incident occurred aboard the Moonlight Throne. When an Emperor-class Honkai Beast endangered Kiana and retreat would have left Bronya exposed, Mei removed her restrictions and annihilated the enemy with lightning. The exertion left her unconscious, while the incident confirmed that prolonged use of her powers could allow Honkai consciousness to consume her. 14 15

Her father later directed her toward a gift stored at ME Company: Plasma Shadow Show, a katana intended to restrain a Herrscher should Mei lose control. Mei kept the weapon rather than surrendering it to Ling Feng. 17 36 37

Appearance

Mei is a black-haired young woman described as elegant, gentle, and exceptionally beautiful. Her build is tall and slender, with a composed presence that contrasts with her destructive lightning power. 1 4 149

  • Black hair. 1
  • Tall, slender figure. 149
  • Usually carries a katana in combat. 5 21
  • Her body becomes surrounded by purple lightning and her eyes glow red while using Herrscher power. 22

Personality

Mei is polite, considerate, and restrained. She respects others’ privacy, believing Ling Feng will explain his past only if he wishes to do so, and she remains calm when misunderstandings arise between her teammates. 7 20

She is also highly driven. Her wish to clear Ryoma’s name, protect her friends, and keep pace with stronger allies repeatedly pushes her to pursue greater power despite the danger of Honkai corruption. 16 27 52 77

In battle, Mei is strategic and protective. She directs Bronya to secure mission objectives while she and Kiana hold the line, intervenes to shield Kiana from stronger enemies, and refuses to abandon Himeko after the latter is injured. 14 21

Abilities & Skills

Valkyrie Combat

Mei is Team 233’s principal melee fighter and a skilled katana user. Even before relying on her Stigmata, she could defeat B-rank Valkyries in sparring. 12

  • Uses Beichen Iai Style techniques, including Amaterasu, Slash. 14 21
  • Can release rapid energy slashes through her blade. 14 21
  • Learnt Flash Step from Ling Feng, allowing her to rapidly close distance in combat. 100
  • Her standard attacks were insufficient to break an Emperor-class Honkai Beast’s shield without Herrscher power. 21

Conquest Gem and Herrscher Power

Mei possesses the Conquest Gem, a Herrscher core fragment associated with lightning. It grants extraordinary power but can allow Honkai consciousness to take over her body. 42 51

  • Releases lightning-enhanced sword attacks capable of destroying Emperor-class Honkai Beasts. 14 22
  • Can enter a Herrscher form with overwhelming speed and destructive force. 41
  • Has accidentally discharged electricity in response to heightened emotion. 51
  • Can use the Gem’s power without fully transforming after training, but sustained transformation risks loss of self. 51 52 225
  • Her Conquest Gem was briefly extracted by the Honkai Queen, who sought to reclaim its lightning power. 42

Thunder Shadow Blade

Thunder Shadow Blade is Mei’s named lightning sword technique. She channels electricity into her blade before unleashing an instantaneous slash. 52

  • Functions as an electromagnetic-pulse-type attack. 52
  • Particularly effective against mechanical enemies such as Anti-Entropy mechs. 52
  • Requires continued practice because Mei’s early control over the Conquest Gem was incomplete. 52

Leadership and Academics

Mei combines combat skill with strong judgment and academic ability.

  • Leads Team 233’s battlefield decisions and prioritizes civilian, teammate, and mission safety. 4 14 21
  • Consistently ranks first academically at St. Freya Academy. 18
  • Assigned homework to Kiana and supervises her studies. 117

Equipment / Weapons / Items

  • Plasma Shadow Show — Katana left by Ryoma; designed to restrain Herrschers and later shown capable of freezing an Emperor-class Honkai Beast. 37 180
  • Muramasa Katana — Her basic katana, lacking special effects. 5
  • Attila (B) Stigmata — Four-star Stigmata that substantially reinforced her body and combat ability. 8 12
  • Conquest Gem — Implanted Herrscher core fragment representing lightning; source of her Herrscher powers. 42

Relationships

  • Ling Feng — Team 233’s assistant, combat instructor, and Mei’s first confirmed boyfriend. He supports her efforts to master the Conquest Gem and repeatedly protects her during Herrscher incidents. 52 77 138 284
  • Kiana — Teammate and close friend. Mei is fiercely protective of Kiana, though their shared feelings for Ling Feng also make them romantic rivals. 14 21 100
  • Bronya — Team 233 teammate. Mei trusts Bronya with critical operational tasks, including taking control of the Moonlight Throne. 14 21
  • Ryoma — Her imprisoned father. Mei seeks S-rank status to clear his name; he fears her Herrscher transformation and entrusts Ling Feng with stopping her if necessary. 16 17
  • Himeko — Senior Valkyrie and ally. Mei refuses to leave Himeko behind when she is injured in combat. 21
  • Miku — Former classmate and friend who remained in contact with Mei after they parted. 59
  • Chiyuan — A fighter placed under Mei’s guidance. Mei arranges her Limit Break modification to prepare her against the Honkai. 84

Story Role / Major Arcs

Team 233 Recruitment

Mei joins Kiana and Bronya in receiving Ling Feng as Team 233’s assistant. She welcomes him politely and helps clean and prepare his room, establishing herself as the household’s responsible caretaker. 3

Stigmata Enhancement

Seeking to become stronger, Mei accepts Ling Feng’s manual Stigmata imprinting. The resulting four-star Attila Stigmata dramatically improves her combat performance and helps establish her and Kiana as leading students in their class. 7 8 12

Moonlight Throne Incident

Mei leads the effort to contain Honkai Beasts aboard the rogue Moonlight Throne while Bronya works on its systems. She releases her Third Herrscher power to protect Kiana and eliminate an Emperor-class Honkai Beast, despite her promise not to use that power again. 14 15

Herrscher Instability

Mei again invokes Herrscher power to save Kiana and Himeko, but Honkai consciousness takes control and turns her against Kiana. Ling Feng restores her by draining the Honkai energy from her, reinforcing Mei’s fear of becoming a true Herrscher. 22 27

ME Company Gift Retrieval

Mei travels to Japan with Ling Feng and Kiana to retrieve Ryoma’s hidden gift. Using ME Company’s final password, she accesses the storage area and obtains Plasma Shadow Show, accepting the painful implication that her father prepared a weapon to restrain her. 28 36 37

Conquest Gem Training

After Kiana absorbs her power during another Herrscher episode, Mei begins learning to use the Conquest Gem safely. Ling Feng trains her in rapid swordsmanship, Flash Step, lightning control, and Thunder Shadow Blade. 41 51 52

A-rank Advancement

Training under Ling Feng and Fu Hua allows Mei and Kiana to advance to A-rank Valkyrie on the same day. Mei receives the first-place designation after Kiana voluntarily yields it. 117

Later Anti-Honkai Efforts

As a more experienced Valkyrie and strategist, Mei guides Chiyuan’s emergency Limit Break modification and focuses on building the strength humanity needs against the approaching Deities. 84 86