Artist.
Nickname: "kelu." (ける), "kly" or けるさん (Keru-san)
Circle name: 鳥とニトロ (Tori to Nitro) (The other members: Yoshikawa_(cajica) and cura (an alt name for Kurashiki_(kas0)))
(The artist is also a member of Ikebukuro Oto-ge-bu, a Phantasy Star Online 2 team.)