[Hirokawa Kouichirou] A to Z
[Anthology] Love Chara Taizen No. 7 (Various)
[COMIC] Penguinclub Sanzokuban 2003-02
[Hirokawa Tomo] Fresh Meat!
(Puniket 6) [OVACAS (Hirokawa Kouichirou)] AxA (Ojamajo Doremi)
[Otonano Omochiya (Hirokawa)] Otonano Omochiya Vol. 16 [English]
Hungar x Hungar One Pause (Hunter x Hunter One Piece)
(Puniket 12) [OVACAS (Hirokawa Kouichirou)] Sensei dazo! (Pani Poni Dash!)
[Hirokawa Tomo] Puripanyu Z
COMIC Penguinclub Sanzokuban 2003-11
(C57) [OVACAS (Hirokawa Kouichirou)] Doremix Deluxe (Ojamajo Doremi)
(CR36) [Abellcain, OVACAS (Fujimaru Arikui, Hirokawa Kouichirou)] Iron Maiden (Genshiken, Kujibiki Unbalance)
[Hirokawa Tomo] Fresh Meat! [Chinese]
(C74) [OVACAS, Abellcain (Hirokawa Kouichirou, Fujimaru Arikui)] S.M.S Niyoukoso! (Macross Frontier)
Men's Dolphin 1999-11-01 Vol.03
Otonano Omochiya 6 Kan
[Hirokawa Kouichirou] Deep Trip | 銷魂之旅 [Chinese]
[Otonano Omochiya (Hirokawa)] Otonano Omochiya Vol. 15 [English]
(CT20) [OVACAS (Hirokawa Kouichirou)] Bouhatei no Onna. (Joshiraku)
Otonano Omochiya Vol.13
(Suika Musume 3) [Ovacas (Hirokawa Kouichirou)] Asama de Training (Issho ni Training)
(C67) [OVACAS (Hirokawa Kouichirou)] HIME-Hajime (My-HiME)
[Otonano Omochiya (Hirokawa)] Otonano Omochiya 12 Futaba no Ohanashi Matome 2 [English] [Digital] [Ongoing]
(C68) [OVACAS (Hirokawa Kouichirou)] MAI-CCHING (Mai-HiME) [English] [SaHa]
[Kantou Usagi Gumi] Pink Kami Keikaku (Various)
(C83) [OVACAS (Hirokawa Kouichirou)] Buratei Heart. (Joshiraku)
(C78) [Shuudan Bouryoku (Various)] Hooliganism 17 Record of ALDELAYD Act.12 Exhibition DX9
Otonano Omochiya Vol. 15
(CR27) [Dangan Densetsu Laser (Hirokawa Tomo, Nerima Yoshito)] Kairaku Gensoku Hagurumashiki Soutei Souchi (Revolutionary Girl Utena)
(C79) [OVACAS (Hirokawa Kouichirou)] Tenshi(Bitch) ni Love Song o! (Panty & Stocking with Garterbelt)
(C78) [Shuudan Bouryoku (Murasaki Syu)] Hooliganism 17 Record of ALDELAYD Act.12 Exhibition DX9 (English) =LWB=
Magical? Banana
[Hirokawa Tomo] Cherry Concerto
(C69) [KNOCKOUT (Various)] Oshiri de Kyu! 9 (Various)
Takamori Aiko hamedori manga
[Hirokaworld (Hirokawa)] Neko Ebon Plus
(ABC 5) [OVACAS (Hirokawa Kouichirou)] Iro Iro Gal and Dou (Various)
(C72) [Ovacas (Hirokawa Kouichirou)] Lucky Punch (Lucky Star)
(SC16) [Ovacas (Hirokawa Kouichirou)] Nichiyou Asa no 8-ji 30-bu (Ojamajo Doremi)
COMIC Penguinclub Sanzokuban 2002-12
Otonano Omochiya 12 Futaba no Ohanashi Matome 2