Artist.
Japanese name: ジンナイ (Jinnai or Jin Nai)
Circle name: ROCK`inChair
Old circle name: Rise Riot (the other member: Maccha)
https://www.pixiv.net/users/141810
https://www.pixiv.net/stacc/jin_nai
https://twitter.com/jin_nai69
https://twitter.com/intent/user?user_id=214454426
https://sketch.pixiv.net/@jin_nai
https://skeb.jp/@jin_nai69
http://69inchair.web.fc2.com
http://rockin_chair.at.infoseek.co.jp
http://twitpic.com/photos/jin_nai69
http://yfrog.com/user/jin_nai69/photos
