|Japanese Name||伊佐井 健太 （いさい けんた）|
|Manga Debut||:re Chapter 19|
|English VA||Jean-Luc Hester|
- Isai was modeled after one of the 20 winners among the applicants to the ghoul investigator recruitment campaign. He is associated with "hot and cold, heating and cooling" (冷熱, reinetsu) in the operation reports attached to the chapters.
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