Erii

Biodata

Feature	Value
Name	Uesugi Erii (绘梨衣) 35
Alias(es)	Uesugi Clan Head; “Little Monster” 35 37
Species/Race	Half-Blood; identified by Kazama Ruri as the strongest Tsukuyomi-no-Mikoto 49
Gender	Female 35
Affiliation	Uesugi Clan; Snake Eight Families 36 45
Occupation/Role	Uesugi Clan Head; the Snake Eight Families’ “secret weapon” 35 45
Status	Active 50
First Appearance	Chapter 35

Background / History

Erii spent most of her life confined within a steel-reinforced, prison-like room at Gen Heavy Industries. Her chamber contained little beyond shrine maiden robes, a television, and a PS3; even her bedroom window was sealed behind thick bulletproof glass. Medical staff monitored her from a distance and administered serum treatments because of her unstable bloodline. 35

Her isolation left her with little understanding of ordinary life. Anime and games formed much of her worldview, leading her to believe fictional worlds and characters might coexist with reality. She had previously attempted to run away from home several times, but fear and poor sense of direction kept her from going far. 41

Gen Chisaki arranged an outing to Akihabara after Erii wrote that she wanted to meet characters such as Lelouch, Naruto, and Luffy. There, she entered the “World Martial Arts Tournament,” a Street Fighter competition, and advanced undefeated to the final. 35 37 38

Erii lost the final to Lu Mingfei, competing under the name Sakura, but his sincere praise after the match made a lasting impression on her. When she was separated from Yaksha in the crowd, she chose to follow Lu Mingfei, beginning an extended trip through Akihabara and Tokyo. 39

During their time together, Lu Mingfei introduced her to shopping, ordinary meals, new clothing, zoos, and basic social customs. Their outing was interrupted when Kazama Ruri targeted Erii, forcing Lu Mingfei to protect her during a nighttime battle. 41 45 48 49

Appearance

Erii is a slender girl with long dark-red hair, crimson or deep rose-red eyes, fair skin, and an expressionless face that often makes her seem doll-like. 35 36

• Usually wears red-and-white shrine maiden robes provided by her family. 35
• Carries a pen and notebook in pockets sewn into her skirt. 36
• Her emotions are more visible in her eyes than in her expression. 35
• After shopping with Lu Mingfei, she wears a white off-the-shoulder dress with a bow sash and white heeled ankle boots. 45
• Frequently carries or wears her cherished Little Yellow Duck. 39 43

Personality

Erii is quiet, observant, and intensely curious about the outside world. Though her face rarely changes, she experiences strong emotions—excitement over anime, determination in competition, loneliness when Lu Mingfei asks her to leave, and delight at unfamiliar experiences. 35 37 41 45

Her sheltered upbringing makes her innocent of common social expectations. She does not initially understand paying for goods, modesty, romantic relationships, or cosplay, and she treats fictional characters and merchandise with unusual seriousness. 40 41 43

She is highly possessive of her belongings, labeling toys and merchandise as hers and considering Naruto, Luffy, and her body pillow part of her “family.” 35 40

Abilities & Skills

Half-Blood Bloodline

Erii possesses an unstable bloodline and is regarded as an exceptionally dangerous figure within the Snake Eight Families. Kazama Ruri identifies her as the strongest Tsukuyomi-no-Mikoto. 43 49

• Requires regular serum treatment and blood transfusions. 35
• Her unstable condition worries Gen Chisaki, who fears she could lose control and cause a disaster in Tokyo. 40
• Her eyesight is exceptional enough to follow the movements of Lu Mingfei and Kazama Ruri’s distant battle. 50

Fighting-Game Skill

Erii is an elite fighting-game player, particularly with Chun-Li in Street Fighter. She takes the Akihabara tournament seriously because she believes its participants must be the strongest fighters. 37

• Advances undefeated through the early tournament rounds and reaches the final. 37 38
• Defeats her semifinal opponent decisively with Chun-Li. 38
• Pushes Lu Mingfei’s Ken to near defeat with a combo and Hoyokusen in the final. 39
• Loses only after Lu Mingfei perfectly blocks and counters her ultimate. 39

Written Communication

Erii is unable to speak and normally communicates through a notebook and pen. 38 39

• Writes in Japanese and can write Chinese, which she taught herself after hearing about Chinese education at Kassel College. 47
• Uses her notebook to ask questions, express requests, and communicate her feelings. 35 41
• Briefly loses her notebook during the tournament crowd crush, leaving her unable to explain herself to others. 39

Equipment / Items

• Notebook and pen — her primary means of communication. 35 36
• Little Yellow Duck — a cherished toy she carries with her. 35 39
• Naruto and Luffy figures — purchased during her Akihabara outing and labeled as Erii’s belongings. 40
• C.C. body pillow — bought alongside her anime figures. 40
• Shrine maiden robes — her usual attire while confined at home. 35

Relationships

• Gen Chisaki — Protective older-brother figure who regularly visits Erii, plays games with her, arranges her Akihabara trip, and leads the search after she disappears. 35 38 40 45
• Lu Mingfei / Sakura — Tournament rival who becomes her guide and protector after helping her escape the crowd. Erii trusts him because of his strength and sincere smile. 39 41 50
• Yaksha — Her guardian during the Akihabara outing. He loses sight of her in the tournament crowd and fears Gen Chisaki’s punishment. 38 39 45
• Crow — Gen Chisaki’s subordinate who suggests taking Erii to Akihabara so she can see characters from anime. 35
• Kazama Ruri — A hostile figure who sees Erii as a replacement connected to Gen Chisaki and attempts to test or kill her. 45 49
• Medical team — Staff responsible for observing and treating Erii’s unstable bloodline while maintaining their distance from her. 35

Story Role / Major Arcs

Akihabara and the World Martial Arts Tournament

Erii first enters the outside world through a supervised Akihabara visit. Her desire to become the “King of Fighters” leads her to join the Street Fighter tournament, where she meets Lu Mingfei in the final. 36 38 39

Separation from the Snake Eight Families

After losing to Lu Mingfei, Erii is separated from Yaksha in a crowd and follows Lu Mingfei instead of returning home. Her lack of experience with money, directions, and ordinary social life becomes apparent during their outing. 39 40 41

Learning About the Outside World

Lu Mingfei teaches Erii about cosplay, payment, modesty, boyfriends, and other everyday concepts. She tries street food, buys clothes, watches anime, visits the zoo, and becomes visibly happier through these experiences. 41 43 45 48

Night Rain Slaughter

Kazama Ruri attacks Erii during a rainy night, intending to test the strongest Tsukuyomi-no-Mikoto. Lu Mingfei orders Erii to stay back and fights Kazama Ruri while she watches anxiously from a safe distance. 48 49 50

Notable Quotes

“I want to see Lelouch, and Naruto and Luffy too.” 35

“I want to become the King of Fighters!” 38

“Sakura is so strong, truly the King of Fighters!” 39

Trivia

• Her favorite activities are gaming and bathing. 35
• She particularly likes Samurai Shodown II and repeatedly challenges Gen Chisaki despite never defeating him. 35
• She becomes especially attached to Gomoku fried rice and requests it for several consecutive meals. 44 45
• She was thrilled to see giant pandas at Ueno Zoological Gardens and asked Lu Mingfei to print a photograph of her with them. 48