(C75) [KOTAMA-ROOM (Kotamaru)] Kotamaru Heya 2008 (C75) [こたまるーむ (娘太丸)] 娘太丸部屋 2008

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

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

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

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

(C85) [Hami Heya (Hamihe)] Nakaide Celia Shoujo Ryoujoku Monogatari (Walkure Romanze)

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

(Reitaisai 15) [Kuro Lili no Heya (lilish)] Bakurei Ni no Maki (Touhou Project)

(C87) [Hami Heya (Hamihe)] Maple Kinoko wa Abunai Kinoko? (Amagi Brilliant Park) [Chinese] [空気系☆漢化]

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

(Puniket 33) [Kouya ni Sakebu Aitsu no Heya (Balpanther)] Mei-chan wa Taikan Kyohou Shugi (High School Fleet)