Artist, manga assistant.
Japanese name: カヤマ (Kayama)
The other name: Reki (レキ)
Pen-name as a mangaka: 火山 賢二 (Kayama Kenji)
He is a member of this free game project team: http://kaoruharuka.web.fc2.com/
https://www.pixiv.net/users/180006
https://www.pixiv.net/stacc/raguna
https://twitter.com/reki0710
https://twitter.com/intent/user?user_id=88895511
https://seiga.nicovideo.jp/user/illust/840573
https://www.nicovideo.jp/user/840573
https://sketch.pixiv.net/@raguna
https://www.tinami.com/creator/profile/32790
http://kaoruharuka.web.fc2.com
http://blog.livedoor.jp/kayamakenji/
http://twitpic.com/photos/reki0710
