Group ovacas

(Puniket 6) [OVACAS (Hirokawa Kouichirou)] AxA (Ojamajo Doremi)

(C88) [Nipopo Crisis, OVACAS, Abel Cain (Kakusho Ichien, Hirokawa Koichiro, Fujimaru Arikui)] Mokei Jouhou (Gundam Build Fighters Try)

[OVACAS, Abellcain (Hirokawa Kouichirou, Fujimaru Arikui)] Deep impact (Cosmic Baton Girl Comet-san)

(C75) [Ovacas (Hirokawa Kouichirou)] Ovacas Style 2008 (Kannagi, Queen's Blade, Strike Witches)

(C54) [OVACAS (Various)] Capricon 1 Director's Cut (Various)

(C84) [OVACAS (Hirokawa Kouichirou)] Kedamono-tachi no YAMATO. (Space Battleship Yamato 2199)

[Yumeizukosya, OVACAS (Hirokawa Kouichirou)] Ebisu Taisen (Sakura Taisen)

(CT20) [OVACAS (Hirokawa Kouichirou)] Bouhatei no Onna. (Joshiraku)

(C80) [OVACAS (Hirokawa Kouichirou)] A STYLE. (A Channel)

(C79) [OVACAS (Hirokawa Kouichirou)] Tenshi(Bitch) ni Love Song o! (Panty & Stocking with Garterbelt)

(CSP5) [OVACAS (Hirokawa Kouichirou)] Haru Matsuri Chichi Matsuri 2010 (Various)

(CSP5) [OVACAS (Hirokawa Kouichirou)] Haru Matsuri Chichi Matsuri 2010 EVENT EDITION (Various)

(C77) [OVACAS (Hirokawa Kouichirou)] Love Style (Love Plus)

(C76) [OVACAS (Hirokawa Kouichirou)] Asamade Training (Issho ni Training)

(C76) [OVACAS (Hirokawa Kouichirou)] Houkago XX Time (K-ON!)

(Mimiket 3) [OVACAS (Hirokawa Kouichirou)] Zoids Tanekentai Born Free (ZOIDS)

(Suika Musume 3) [Ovacas (Hirokawa Kouichirou)] Asama de Training (Issho ni Training)

(SC19) [Abellcain, OVACAS (Fujimaru Arikui, Hirokawa Kouichirou)] Rotation (Gundam SEED)

(C65) [OVACAS (Hirokawa Kouichirou)] FLOW MY TEARS A SENIOR SAID (Uchuu No Stellvia)