23 favorites
Male
September 28
Age21 (debut), 23
Kai Mayuzumi
黛灰
About
_Debut date:_ Jul 28, 2019
_Graduation date:_ Jul 28, 2022
_Fanbase name:_ ListeNerds
_Illustrator: Ichijiku ([Twitter](https://twitter.com/1ji91109))
[Profile](https://www.nijisanji.jp/members/kai-mayuzumi) | [YouTube](https://www.youtube.com/channel/UCb5JxV6vKlYVknoJB8TnyYg) | [Twitter](https://twitter.com/mayuzumiX) | [Twitter (Sub)](https://twitter.com/BBashShell)
Mayuzumi Kai is a male Japanese Virtual YouTuber and a member of Nijisanji.
An aloof and talented white-hat hacker who began livestreaming as part of an undercover investigation. He rarely goes outside and orders everything online.
