[Anthology] Love Chara Taizen No. 6
(CR27) [Dangan Densetsu Laser (Hirokawa Tomo, Nerima Yoshito)] Kairaku Gensoku Hagurumashiki Soutei Souchi (Revolutionary Girl Utena)
(C72) [Ovacas (Hirokawa Kouichirou)] Lucky Punch (Lucky Star) [English] [desudesu]
(C66) [INFINITY-FORCE (Mercy Rabbit)] VS∞ VURSUS INFINITY (Capcom vs. SNK)
Otonano Omochiya Vol. 15
Capricon I - Director's Cut
[Anthology] Aokan Special
Men's Dolphin 1999-11-01 Vol.03
[Hirokawa Tomo] Puripanyu Z
Otonano Omochiya 12 Futaba no Ohanashi Matome 12
[Hirokaworld (Hirokawa)] Shiikibi (Various) [Digital]
(C64) [KNOCKOUT (Various)] Oshiri de Kyu! 8 (Various)
KupaaBon 3
(C79) [OVACAS (Hirokawa Kouichirou)] Tenshi(Bitch) ni Love Song o! (Panty & Stocking with Garterbelt)
(SC27) [Hirokaworld (Hirokawa)] 15/21 (3-nen B-gumi Kinpachi Sensei Densetsu no Kyoudan ni tate!)
Kono subarashī Amahito-chan no demisōsu!
Otonano Omochiya 6 Kan
[INFINITY-FORCE (Various)] Digitama 04 FRONTIER (Digimon Tamers, Digimon Frontier)
[Hirokawa Kouichirou] Deep Trip | 銷魂之旅 [Chinese]
(C65) [OVACAS (Hirokawa Kouichirou)] FLOW MY TEARS A SENIOR SAID (Uchuu No Stellvia)
(CR36) [Abellcain, OVACAS (Fujimaru Arikui, Hirokawa Kouichirou)] Iron Maiden (Genshiken, Kujibiki Unbalance)
(C57) [OVACAS (Hirokawa Kouichirou)] Doremix Deluxe (Ojamajo Doremi)
[Anthology] Love Chara Taizen No. 7 (Various)
Otonano Omochiya 12 Futaba no Ohanashi Matome 2
(CSP4) [OVACAS (Hirokawa Kouichirou)] Haru Matsuri Chichi Matsuri (School Rumble, Mai-HiME)
(C70) [OVACAS (Hirokawa Kouichirou)] Magical? Banana (Renkin 3-kyuu Magical? Pokaan)
Otonano Omochiya Vol. 1-14
[Otonano Omochiya (Hirokawa)] Otonano Omochiya 12 Futaba no Ohanashi Matome 2 [English] [Digital] [Ongoing]
(C76) [OVACAS (Hirokawa Kouichirou)] Asamade Training (Issho ni Training)
(C72) [Ovacas (Hirokawa Kouichirou)] Lucky Punch (Lucky Star)
(C56) [OVACAS (Various)] Dore Mix (Ojamajo Doremi)
[OVACAS (Hirokawa Kouichirou)] Gakuen Erotopia Kaiteiban (Manabi Straight!)
(Puniket 9) [Marchen Box (Various)] Two Toned Romps (Pretty Cure)
(C76) [OVACAS (Hirokawa Kouichirou)] Houkago XX Time | After School XX Time (K-ON!) [English] [Darknight]
(Puniket 11) [Hirokaworld (Hirokawa)] Pachie-bon (3-nen B-gumi Kinpachi Sensei Densetsu no Kyoudan ni tate!)
Magical? Banana
[OVACAS (Hirokawa Kouichirou)] Kashi 1114 (Ojamajo Doremi)