Artist: Kotamaru

[Yoshinoya Matsuya (Ushigoroshi)] DOG BOYS

[Lillian] Twinkle☆Crusaders Passion Star Stream Visual Fanbook [Kannagi rei･kotamaru]

[Lillian] Twinkle☆Crusaders Perfect Visual Book [Kannagi rei･kotamaru]

Toranoana Chronicle 2012

(C72) [KOTAMA-ROOM (Kotamaru)] Kotamaru Rough Gashuu CROQUIS (Original)

(C69) [PUSSY CAT (Kotamaru)] KOTAMAROOM (Various)

[Tamago no Kara (Various)] Buri no Hon (Guilty Gear XX)

(Mimiket 7) [Yoshinoya Matsuya (various)] DOGBOYS

(C75) [KOTAMA-ROOM (Kotamaru)] Kotamaru Heya 2008

(C70) [Pussy CAT (Kotamaru, Oono Tetsuya, Tororo)] PUSSY ARK (Prism Ark)

(C71) [Pussy CAT (Ikuta Takanon/Kotamaru) Kotamaroom 2006