Eri Wanibuchi

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**Eri Wanibuchi** (鰐 (わに) 淵 (ぶち) 瑛 (え) 里 (り) , *Wanibuchi Eri*) is one of the characters in Kill Blue manga series. She is Juzo Ogami's ex-wife and is the Head of the Science Department of the Z.O.O. Assassin Syndicate.

## Appearance

As the head of the Science Department within the Z.O.O., an assassin syndicate, Eri typically dons a white, long laboratory coat with a black turtle neck shirt beneath. Additionally, she pulls back her light brown hair, which is of moderate length, into a messy bun, while allowing some stray strands to hang loosely and give her fringes a slightly unkempt appearance.

## Personality

Eri Wanibuchi, Juzo Ogami's ex-wife, is portrayed as a highly intelligent and caring individual. She works in a laboratory and is deeply engrossed in her work, particularly in genetic manipulation research for the sake of Juzo's case. Eri is concerned about Juzo's well-being and reassures him about his physical condition when he awakens with extreme physical changes.

She is quite knowledgeable about the genetic manipulation group associated with Juzo's recent job and the unique properties of the wasp that bit him. Eri is analytical and cautious in her approach to the complex situation Juzo is facing. She suggests that he take a leave from his work due to the lack of immediate danger to his life but understands his financial responsibilities.

Her concern for Juzo extends beyond their past relationship, as she continues to support and assist him in his new life as a middle school student. She collaborates with Kotatsu in providing guidance and advice to Juzo, showing her willingness to help him adapt to his new circumstances.

Her interactions with Juzo at the bar reveal her sense of humor and a strong connection to their shared past. She acknowledges his stress from exams and playfully comments on his under-eye bags. Eri appreciates the positive change she sees in Juzo since he started attending middle school and encourages him to embrace failure in his newfound passion for learning.

## Plot

### Background

There's not much of information about Eri's background, aside from she's Juzo Ogami's ex-wife. She also holds the position of Head of the Science Department within the Z.O.O. Assassin Syndicate. Additionally, Eri is the mother of their daughter, Kozue, whose appearance hasn't been revealed in the series yet.

## Relationships

### Familial

* **Juzo Ogami:** Eri Wanibuchi is the ex-wife of Juzo Ogami. Despite their divorce, they maintain contact and support each other. Eri is shown to care about Juzo's well-being and is concerned about his physical changes after the wasp bite.
* **Kozue:** Eri mentions their daughter, Kozue, to Juzo, assuring him that she is doing well. She emphasizes that Kozue has become responsible on her own, indicating that Eri is keeping tabs on their daughter's progress.

### Non Familial

* **Z.O.O. Assassin Syndicate's Boss:** Eri is aware of Juzo's involvement with "The Boss" and is present when Juzo receives a proposal from him. The proposal involves Juzo attending a middle school in search of a better school experience for his daughter.
* **Mama:** Eri visits Mama's place often, and Mama is aware of her usual order. There is no further information provided about their relationship.

## Etymology

The name **鰐淵瑛里**, which can be romanized as *"Wanibuchi Eri,"* is a combination of three kanji characters: 鰐 (wani) means crocodile, 淵 (buchi) means deep pool or abyss, and 瑛里 (eri) means sparkling village.
* The surname **鰐淵 (Wanibuchi)** is quite rare in Japan, and its origins are not clear. It is possible that it is a combination of two place names or that it refers to a location with a deep pool where crocodiles were once found.

* The given name **瑛里 (Eri)** is a common name for Japanese girls. The first character, 瑛 (ei), means crystal or sparkle, and the second character, 里 (ri), means village. The name may be interpreted as "sparkling village" or "crystal-clear village."

Overall, the name "鰐淵瑛里" may be interpreted as "the deep pool of crocodiles with the sparkle of jewels in a village".
## Trivia

* Eri possesses a high IQ and excels in her professional endeavors.
* As a mother, there are moments when she feels disappointed, but her daughter refrains from expressing her thoughts because she recognizes Eri's dedication.
* Eri has a strong fondness for coffee and holds distinct preferences for various coffee types, unlike her approach to food.
* She views meals primarily as a means to replenish energy, aligning with those who share a similar perspective.

## References

 Volume 1 Character Illustration of Eri Wanibuchi
*Kill Blue* Manga: Chapter 1 (p. 17). — Eri Wanibuchi's introduction.
*Kill Blue* Manga: Chapter 1 (pp. 12-14, 17-22).
*Kill Blue* Manga: Chapter 10 (pp. 14-18).