[Otonano Gu-wa (Yamada Tarou (Kamei))] Oyako Yuugi - Parent and Child Game
(C94) [Honoka na Omochiya (Omochi)] SERVICEM@STER UZUKI SHIMAMURA Vol. 1 (THE IDOLM@STER CINDERELLA GIRLS)
(SC23) [Abellcain, OVACAS (Fujimaru Arikui, Hirokawa Kouichirou)] Precure Machine (Futari wa Precure)
Otonano Omochiya Vol. 16
(C72) [Ovacas (Hirokawa Kouichirou)] Lucky Punch (Lucky Star)
(C73) [OVACAS (Hirokawa Kouichirou)] Banchou Densetsu (Minami-ke)
Imoimo Yuugi - Sisters Game
[Otonano Do-wa (Takei Masaki)] Otonano Do-wa Vol. 22 [English] [EHCOVE]
(Puniket 21) [Hirokaworld (Hirokawa)] Kojikabon Plus (Kodomo no Jikan)
[Amadeus No Isan] Rapid Game {To Heart 2}
(C75) [Ovacas (Hirokawa Kouichirou)] Ovacas Style 2008 (Kannagi, Queen's Blade, Strike Witches)
Otonano Do-wa Vol. 7
Otonano Omochiya 12 Futaba no Ohanashi Matome 2
(C55) [OVACAS (Various)] Heppoko Anime Chinpure Koupure (Various)
Kaseifu Monogatari 2 -Geshuku-
[Otonano Gu-wa (Yamada Tarou (Kamei))] Family Game (incomplete) FATHER-IN-LAW GAME
(Puniket 19) [Hirokaworld (Hirokawa)] Shiikibi (Various)
(Puniket 6) [OVACAS (Hirokawa Kouichirou)] AxA (Ojamajo Doremi)
[Otonano Gu-wa (Yamada Tarou (Kamei))] Sennou Yuugi - Brainwash Game
(C79) [OVACAS (Hirokawa Kouichirou)] Tenshi(Bitch) ni Love Song o! (Panty & Stocking with Garterbelt)
(C58) [Otonano Do-wa (Various)] Otonano Do-wa Vol. 12
(C66) [OVACAS (Hirokawa Kouichirou)] OVACAS SKETCH 5 (Pretty Cure)
Oyako Yuugi - Parent and Child Game
(C69) [OVACAS (Hirokawa Kouichirou)] 1-NEN C-GUMI MAHOGUMI (Pani Poni)
[Salvage Kouboh (Houou-tan)] OTONANO SERVICE (OS-tan)
(C56) [OVACAS (Various)] Dore Mix (Ojamajo Doremi)
[Otonano Gu-wa (Yamada Tarou (Kamei))] TABOO Azusa [English] [N04h]
[Otonano Gu-wa (Yamada Tarou (Kamei))] AKANE 2 (AKANE Soushuuhen) [Chinese] [自己汉化cqxl] [Digital]
(ABC 5) [OVACAS (Hirokawa Kouichirou)] Iro Iro Gal and Dou (Various)
(CSP5) [OVACAS (Hirokawa Kouichirou)] Haru Matsuri Chichi Matsuri 2010 EVENT EDITION (Various)
[Otonano Omochiya (Hirokawa)] Otonano Omochiya 3 Kan [English]
Two Toned Romps
(C49) [Otonano Do-wa (Various)] Otonano Do-wa Vol. 2
Haru Matsuri Chichi Matsuri 2010
Otonano Omochiya Vol. 14