Ovacas Style 2008
(C82) [OVACAS (Hirokawa Kouichirou)] Osaki mo Mae mo Marii-san. (Joshiraku)
(C78) [OVACAS (Hirokawa Kouichirou)] Love Style Plus (Love Plus)
Otonano Omochiya 26
Pachie-bon
(SC27) [Hirokaworld (Hirokawa)] 15/21 (3-nen B-gumi Kinpachi Sensei Densetsu no Kyoudan ni tate!)
COMIC Penguinclub Sanzokuban 2002-12
[Anthology] Dennou Butou Musume Vol 5
COMIC Penguinclub Sanzokuban 2003-11
(C54) [OVACAS (Various)] Capricon 1 Director's Cut (Various)
Kono subarashī Amahito-chan no demisōsu!
Men's Dolphin 1999-11-01 Vol.03
Otonano Omochiya Vol. 14
(COMIC1☆2) [OVACAS (Hirokawa Kouichirou)] Kurobeta (Minami-ke)
Otonano Omochiya 21
Otonano Omochiya Vol. 1-14
(C80) [OVACAS (Hirokawa Kouichirou)] A STYLE. (A Channel)
(C66) [INFINITY-FORCE (Various)] VS∞ VURSUS INFINITY (Capcom vs. SNK)
(C57) [OVACAS (Hirokawa Kouichirou)] Doremix Deluxe (Ojamajo Doremi)
Otonano Omochiya 25
Otonano Omochiya 12 Futaba no Ohanashi Matome 2
(Comic Castle Final) [Nipopo Crisis, OVACAS (Genka Ichien, Hirokawa Kouichirou) Patsukin Dynamite HEAVEN (Bakusou Kyoudai Lets & Go!!)
[OVACAS (Hirokawa Kouichirou)] Kashi 1114 (Ojamajo Doremi)
(Suika Musume 3) [Ovacas (Hirokawa Kouichirou)] Asama de Training (Issho ni Training)
(C64) [Infinity-Force (Mercy Rabbit, Rokujou Mugi, Buruma Hogero, Hirokawa Kouichirou, Yamashita Woory)] MRR A GO!! (Machine Robo Rescue)
[Hirokaworld (Hirokawa)] petta
Haru Matsuri Chichi Matsuri 2010
[Hirokawa Tomo] Cherry Concerto
(Puniket 11) [Hirokaworld (Hirokawa)] Pachie-bon (3-nen B-gumi Kinpachi Sensei Densetsu no Kyoudan ni tate!)
(C75) [Ovacas (Hirokawa Kouichirou)] Ovacas Style 2008 (Kannagi, Queen's Blade, Strike Witches)
Otonano Omochiya 23
Otonano Omochiya Vol. 16
(C79) [OVACAS (Hirokawa Kouichirou)] Tenshi(Bitch) ni Love Song o! (Panty & Stocking with Garterbelt)
(C66) [INFINITY-FORCE (Mercy Rabbit)] VS∞ VURSUS INFINITY (Capcom vs. SNK)
Futaba no Ohanashi Matome 3 - The Story of Futaba 3
(C84) [OVACAS (Hirokawa Kouichirou)] Kedamono-tachi no YAMATO. (Space Battleship Yamato 2199)
Otonano Omochiya Vol.13
(CR35) [Abellcain (Fujimaru Arikui)] KALEIDOSCOPE (Kaleidostar)
[Hirokawa Tomo] Fresh Meat! [Chinese]
(Puniket 9) [Hirokaworld (Hirokawa)] Nyaa Hon
[Hirokaworld (Hirokawa)] Neko Ebon Plus
(Tougetsu-sai) [OVACAS (Hirokawa Kouichirou)] IYASI-K (Pani Poni)
[Otonano Omochiya (Hirokawa)] Otonano Omochiya Vol. 14 [English] [ChoriScans]
[Hirokawa Kouichirou] A to Z
(C74) [OVACAS, Abellcain (Hirokawa Kouichirou, Fujimaru Arikui)] S.M.S Niyoukoso! (Macross Frontier)
[Anthology] Love Chara Taizen No. 7 (Various)
Otonano Omochiya 22
Love Style
(C52) [Raimusha (Various)] Ebisu Taisen Kanzenban (Sakura Taisen)
COMIC Penguinclub Sanzokuban 2003-01
(C72) [Ovacas (Hirokawa Kouichirou)] Lucky Punch (Lucky Star)
(C68) [OVACAS (Hirokawa Kouichirou)] MAI-CCHING (Mai-HiME)
(C61) [Dangan Densetsu (Hirokawa Tomo)] Kirakira no Haru (AIR, Kanon)
(CR36) [Abellcain, OVACAS (Fujimaru Arikui, Hirokawa Kouichirou)] Iron Maiden (Genshiken, Kujibiki Unbalance)
Otonano Omochiya 12 Futaba no Ohanashi Matome 12
Hungar x Hungar One Pause (Hunter x Hunter One Piece)
(SC32) [OVACAS (Hirokawa Kouichirou)] another day (Ojamajo Doremi)
(C74) [Hirokaworld (Hirokawa)] Akiratama (Lucky☆Star)
(C51) [Hiasobi Club (Fumizuki Kou)] NO BRAND LONELY WINTER
(C72) [Ovacas (Hirokawa Kouichirou)] Lucky Punch (Lucky Star) [English] [desudesu]
(C76) [OVACAS (Hirokawa Kouichirou)] Asamade Training (Issho ni Training)
[OVACAS, Abellcain (Hirokawa Kouichirou, Fujimaru Arikui)] Deep impact (Cosmic Baton Girl Comet-san)
(Puniket 6) [OVACAS (Hirokawa Kouichirou)] AxA (Ojamajo Doremi)
(C71) [OVACAS (Hirokawa Kouichirou)] BITCH STYLE (WITCHBLADE) [English] [desudesu]
(CR27) [Dangan Densetsu Laser (Hirokawa Tomo, Nerima Yoshito)] Kairaku Gensoku Hagurumashiki Soutei Souchi (Revolutionary Girl Utena)
(Mimiket 3) [OVACAS (Hirokawa Kouichirou)] Zoids Tanekentai Born Free (ZOIDS)
COMIC Penguinclub Sanzokuban 2002-10
[Dangan Densetsu (Hirokawa Tomo)] Fairy Shape (Final Fantasy VIII)
(Futaket vs. ABC ~Hentaisai~) [OVACAS (Hirokawa Kouichirou)] Gakuen Erotopia (Manabi Straight!) [English] [biribiri]
[ANTHOLOGY] Meganekko Deluxe
COMIC Penguin Club Sanzokuban 2001-06
Takamori Aiko hamedori manga