Capricon I - Director's Cut
(C75) [Ovacas (Hirokawa Kouichirou)] Ovacas Style 2008 (Kannagi, Queen's Blade, Strike Witches)
(C81) [Manchin Sakura (COSiNE ,Erect Sawaru and more) Chun-li san to COSiNE ni Shuu Shuunen Kinen Hon (Street Fighter)
(C70) [OVACAS (Hirokawa Kouichirou)] Magical? Banana (Renkin 3-kyuu Magical? Pokaan)
(C65) [OVACAS (Hirokawa Kouichirou)] FLOW MY TEARS A SENIOR SAID (Uchuu No Stellvia)
(C76) [OVACAS (Hirokawa Kouichirou)] Asamade Training (Issho ni Training)
(C55) [OVACAS (Various)] Heppoko Anime Chinpure Koupure (Various)
(C64) [KNOCKOUT (Various)] Oshiri de Kyu! 8 (Various)
(SC32) [OVACAS (Hirokawa Kouichirou)] another day (Ojamajo Doremi)
(C70) [Knockout, Nikomark (Various)] Chougokubuto | Super Gokubuto (Various)
Otonano Omochiya Vol. 16
(C69) [KNOCKOUT (Various)] Oshiri de Kyu! 9 (Various)
Otonano Omochiya Vol.13
(C82) [OVACAS (Hirokawa Kouichirou)] Osaki mo Mae mo Marii-san. (Joshiraku)
Otonano Omochiya 17
(COMIC1☆2) [OVACAS (Hirokawa Kouichirou)] Kurobeta (Minami-ke)
COMIC Penguinclub Sanzokuban 2003-11
Otonano Omochiya Vol. 14
[OVACAS, Abellcain (Hirokawa Kouichirou, Fujimaru Arikui)] Deep impact (Cosmic Baton Girl Comet-san)
Pachie-bon
(C64) [Infinity-Force (Mercy Rabbit, Rokujou Mugi, Buruma Hogero, Hirokawa Kouichirou, Yamashita Woory)] MRR A GO!! (Machine Robo Rescue)
Otonano Omochiya 12 Futaba no Ohanashi Matome 12
(CR27) [Dangan Densetsu Laser (Hirokawa Tomo, Nerima Yoshito)] Kairaku Gensoku Hagurumashiki Soutei Souchi (Revolutionary Girl Utena)
Otonano Omochiya 6 Kan
COMIC Penguinclub Sanzokuban 2002-10
(CT20) [OVACAS (Hirokawa Kouichirou)] Bouhatei no Onna. (Joshiraku)
Hungar x Hungar One Pause (Hunter x Hunter One Piece)
Men's Dolphin 1999-11-01 Vol.03
[Anthology] Dennou Butou Musume Vol 5
Otonano Omochiya Vol. 15
(C72) [Ovacas (Hirokawa Kouichirou)] Lucky Punch (Lucky Star)
[Shuudan Bouryoku (Murasaki Syu)] Takanashi-san-chi no 4 Shimai - 1 (WORKING!!)
[Anthology] Love Chara Taizen No. 7 (Various)
(SC27) [Hirokaworld (Hirokawa)] 15/21 (3-nen B-gumi Kinpachi Sensei Densetsu no Kyoudan ni tate!)
(Comic Castle Final) [Nipopo Crisis, OVACAS (Genka Ichien, Hirokawa Kouichirou) Patsukin Dynamite HEAVEN (Bakusou Kyoudai Lets & Go!!)
(C90) [Hooliganism (Murasaki Syu, Hirokawa Kouichirou)] Kono Subarashii Demi-chan no Demi Sauce! (Demi-chan wa Kataritai, Kono Subarashii Sekai ni Syukufuku o!)
COMIC Penguin Club Sanzokuban 2000-09
(CSP4) [OVACAS (Hirokawa Kouichirou)] Haru Matsuri Chichi Matsuri (School Rumble, Mai-HiME)
[OVACAS (Hirokawa Kouichirou)] Gakuen Erotopia Kaiteiban (Manabi Straight!)
Comic Sigma Volume 1
(C76) [OVACAS (Hirokawa Kouichirou)] Houkago XX Time (K-ON!)
Tenshi ni Love Song o!
(C78) [OVACAS (Hirokawa Kouichirou)] Love Style Plus (Love Plus) [English] [shakuganexa]
(C54) [OVACAS (Various)] Capricon 1 Director's Cut (Various)
COMIC Penguinclub Sanzokuban 2003-01
(ABC 5) [OVACAS (Hirokawa Kouichirou)] Iro Iro Gal and Dou (Various)
(C67) [OVACAS (Hirokawa Kouichirou)] HIME-Hajime (My-HiME)
(C66) [INFINITY-FORCE (Various)] VS∞ VURSUS INFINITY (Capcom vs. SNK)
(Mimiket 3) [OVACAS (Hirokawa Kouichirou)] Zoids Tanekentai Born Free (ZOIDS)
(C84) [OVACAS (Hirokawa Kouichirou)] Kedamono-tachi no YAMATO. (Space Battleship Yamato 2199)
(Puniket 12) [OVACAS (Hirokawa Kouichirou)] Sensei dazo! (Pani Poni Dash!)
(Puniket 12) [OVACAS (Hirokawa Kouichirou)] Sensei dazo! (Pani Poni)
[Hirokaworld (Hirokawa)] Shiikibi (Various) [Digital]
Otonano Omochiya Vol. 13
(C65) [Infinity-Force (Various)] BL Are Go!! (Machine Robo Rescue)
(Puniket 19) [Hirokaworld (Hirokawa)] Shiikibi (Various)
(CSP5) [OVACAS (Hirokawa Kouichirou)] Haru Matsuri Chichi Matsuri 2010 (Various)
Haru Matsuri Chichi Matsuri 2010
(C66) [Shuudan Bouryoku (Various)] File/12 Record of Aldelayd - EXHIBITION DX4
(SC19) [Abellcain, OVACAS (Fujimaru Arikui, Hirokawa Kouichirou)] Rotation (Gundam SEED)
Otonano Omochiya 12 Futaba no Ohanashi Matome 2
[Anthology] Aokan Special
[INFINITY-FORCE (Various)] Digitama 04 FRONTIER (Digimon Tamers, Digimon Frontier)
(CSP5) [OVACAS (Hirokawa Kouichirou)] Haru Matsuri Chichi Matsuri 2010 EVENT EDITION (Various)
(COMIC1) [OVACAS, Abellcain (Hirokawa Kouichirou, Fujimaru Arikui)] Itazura Drill (Tengen Toppa Gurren Lagann)
[Amatoro Bow] Hanarete Ite mo Hito ni Fureru Otoko
(C68) [OVACAS (Hirokawa Kouichirou)] MAI-CCHING (Mai-HiME)
[Hirokawa Kouichirou] A to Z
(C51) [Hiasobi Club (Fumizuki Kou)] NO BRAND LONELY WINTER
(Futaket vs. ABC ~Hentaisai~) [OVACAS (Hirokawa Kouichirou)] Gakuen Erotopia (Manabi Straight!)
Takamori Aiko hamedori manga
(C83) [OVACAS (Hirokawa Kouichirou)] Buratei Heart. (Joshiraku)
(C52) [Raimusha (Various)] Ebisu Taisen Kanzenban (Sakura Taisen)
[Hirokaworld (Hirokawa)] Neko Ebon Plus
(C65) [INFINITY-FORCE (Various)] BL Are Go!! (Machine Robo Rescue)
COMIC Penguinclub Sanzokuban 2003-12
[Hirokawa Kouichirou] PET LIFE
Love Style
(C62) [OVACAS (Hirokawa Kouichirou)] OVACAS SKETCH 4 Sokuon (Azumanga-Daioh)
(C78) [OVACAS (Hirokawa Kouichirou)] Love Style Plus (Love Plus)
(C56) [OVACAS (Various)] Dore Mix (Ojamajo Doremi)
[COMIC] Penguinclub Sanzokuban 2003-02
[Hirokaworld (Hirokawa)] petta
(C80) [OVACAS (Hirokawa Kouichirou)] A STYLE. (A Channel)
[Dangan Densetsu (Hirokawa Tomo)] Fairy Shape (Final Fantasy VIII)