(CSP5) [OVACAS (Hirokawa Kouichirou)] Haru Matsuri Chichi Matsuri 2010 (Various)
(SC32) [OVACAS (Hirokawa Kouichirou)] another day (Ojamajo Doremi)
(C56) [OVACAS (Various)] Dore Mix (Ojamajo Doremi)
(C57) [OVACAS (Hirokawa Kouichirou)] Doremix Deluxe (Ojamajo Doremi)
(Puniket 6) [OVACAS (Hirokawa Kouichirou)] AxA (Ojamajo Doremi)
(CSP5) [OVACAS (Hirokawa Kouichirou)] Haru Matsuri Chichi Matsuri 2010 EVENT EDITION (Various)
(C61) [OVACAS (Hirokawa Kouichirou)] S.F.3.D (Various)
(CR27) [OVACAS (Hirokawa Kouichirou)] OVACAS SKETCH (Various)
(C71) [OVACAS (Hirokawa Kouichirou)] BITCH STYLE (WITCHBLADE)
[OVACAS (Hirokawa Kouichirou)] Kashi 1114 (Ojamajo Doremi)