(C66) [INFINITY-FORCE (Mercy Rabbit)] VS∞ VURSUS INFINITY (Capcom vs. SNK)
Magical? Banana
Otonano Omochiya 17
[Hirokaworld (Hirokawa)] Neko Ebon Plus
(C57) [OVACAS (Hirokawa Kouichirou)] Doremix Deluxe (Ojamajo Doremi)
Kono subarashī Amahito-chan no demisōsu!
Love Style
(Mimiket 3) [OVACAS (Hirokawa Kouichirou)] Zoids Tanekentai Born Free (ZOIDS)
(C56) [Doudan Tsutsuji (Doudantsutsuji, Hirokawa Tomo)] Getten! (Mamotte Shugogetten)
(C71) [OVACAS (Hirokawa Kouichirou)] BITCH STYLE (WITCHBLADE)
(C61) [Dangan Densetsu (Hirokawa Tomo)] Kirakira no Haru (AIR, Kanon)
[ANTHOLOGY] Meganekko Deluxe
大人のおもちや3巻
[Anthology] Aokan Special
(C68) [OVACAS (Hirokawa Kouichirou)] MAI-CCHING (Mai-HiME)
Otonano Omochiya Vol. 16
[Dangan Densetsu (Hirokawa Tomo)] Fairy Shape (Final Fantasy VIII)
(C72) [Ovacas (Hirokawa Kouichirou)] Lucky Punch (Lucky Star)
[OVACAS (Hirokawa Kouichirou)] Kashi 1114 (Ojamajo Doremi)
[Otonano Omochiya (Hirokawa)] Otonano Omochiya Vol. 16 [Chinese]
(C64) [Infinity-Force (Mercy Rabbit, Rokujou Mugi, Buruma Hogero, Hirokawa Kouichirou, Yamashita Woory)] MRR A GO!! (Machine Robo Rescue)
(C62) [KNOCKOUT (Various)] Oshiri de Kyu! 7 (Various)
[Otonano Omochiya (Hirokawa)] Otonano Omochiya Vol. 15 [English]
(C99) [Otonano Omochiya (Hirokawa)] Otonano Omochiya 17 [Chinese]
(C70) [Knockout, Nikomark (Various)] Chougokubuto | Super Gokubuto (Various)
(C68) [OVACAS (Hirokawa Kouichirou)] MAI-CCHING (Mai-HiME) [English] [SaHa]
COMIC Penguinclub Sanzokuban 2003-08
(CSP5) [OVACAS (Hirokawa Kouichirou)] Haru Matsuri Chichi Matsuri 2010 EVENT EDITION (Various)
COMIC Penguin Club Sanzokuban 2001-08 [Incomplete]
(C72) [Ovacas (Hirokawa Kouichirou)] Lucky Punch (Lucky Star) [English] [desudesu]
COMIC Penguin Club Sanzokuban 2000-09
(C65) [Infinity-Force (Various)] BL Are Go!! (Machine Robo Rescue)
(SC19) [Abellcain, OVACAS (Fujimaru Arikui, Hirokawa Kouichirou)] Rotation (Gundam SEED)
Otonano Omochiya 6 Kan
(C76) [OVACAS (Hirokawa Kouichirou)] Asamade Training (Issho ni Training)
(CR27) [OVACAS (Hirokawa Kouichirou)] OVACAS SKETCH (Various)
(COMIC1) [OVACAS, Abellcain (Hirokawa Kouichirou, Fujimaru Arikui)] Itazura Drill (Tengen Toppa Gurren Lagann)
(Futaket vs. ABC ~Hentaisai~) [OVACAS (Hirokawa Kouichirou)] Gakuen Erotopia (Manabi Straight!)
[Otonano Omochiya (Hirokawa)] Otonano Omochiya Vol. 16 [English]
(C64) [Abellcain (Fujimaru Arikui)] Lucky Come Come (Kujibiki Unbalance)
[Amatoro Bow] Hanarete Ite mo Hito ni Fureru Otoko
(C70) [OVACAS (Hirokawa Kouichirou)] Magical? Banana (Renkin 3-kyuu Magical? Pokaan)
COMIC Penguin Club Sanzokuban 2001-04
(C77) [OVACAS (Hirokawa Kouichirou)] Love Style (Love Plus)
[Amadeus No Isan] Rapid Game {To Heart 2}
(Puniket 19) [Hirokaworld (Hirokawa)] Shiikibi (Various)
Otonano Omochiya Vol.13
COMIC Penguinclub Sanzokuban 2003-01
[Tamaki Nozomu] Kokuminteki Kanojo Irokawa Mayu no Zenbu
[Hirokaworld (Hirokawa)] petta
Pachie-bon
[Otonano Omochiya (Hirokawa)] Otonano Omochiya 12 Futaba no Ohanashi Matome 2 [English] [Digital] [Ongoing]
(C54) [OVACAS (Various)] Capricon 1 Director's Cut (Various)
(Puniket 11) [Hirokaworld (Hirokawa)] Pachie-bon (3-nen B-gumi Kinpachi Sensei Densetsu no Kyoudan ni tate!)
(ABC 5) [OVACAS (Hirokawa Kouichirou)] Iro Iro Gal and Dou (Various)
Haru Matsuri Chichi Matsuri 2010
[Anthology] Love Chara Taizen No. 6
Otonano Omochiya Vol.6 - Ch.4
COMIC Penguinclub Sanzokuban 2002-12
[Anthology] Love Chara Taizen No. 7 (Various)
Men's Dolphin 1999-11-01 Vol.03
[Hirokawa Kouichirou] Deep Trip
(C83) [OVACAS (Hirokawa Kouichirou)] Buratei Heart. (Joshiraku)
Otonano Omochiya Vol. 15
[Hirokawa Kouichirou] A to Z
Otonano Omochiya 6 Kan Ch. 1
(Puniket 6) [OVACAS (Hirokawa Kouichirou)] AxA (Ojamajo Doremi)
(C62) [OVACAS (Hirokawa Kouichirou)] OVACAS SKETCH 4 Sokuon (Azumanga-Daioh)
Comic Sigma Volume 1
(CSP4) [OVACAS (Hirokawa Kouichirou)] Haru Matsuri Chichi Matsuri (School Rumble, Mai-HiME)
(C74) [OVACAS, Abellcain (Hirokawa Kouichirou, Fujimaru Arikui)] S.M.S Niyoukoso! (Macross Frontier)
Otonano Omochiya 12 Futaba no Ohanashi Matome 2
(C65) [OVACAS (Hirokawa Kouichirou)] FLOW MY TEARS A SENIOR SAID (Uchuu No Stellvia)
(C82) [OVACAS (Hirokawa Kouichirou)] Osaki mo Mae mo Marii-san. (Joshiraku)
(C66) [INFINITY-FORCE (Various)] VS∞ VURSUS INFINITY (Capcom vs. SNK)
(C66) [OVACAS (Hirokawa Kouichirou)] OVACAS SKETCH 5 (Pretty Cure)
(C78) [OVACAS (Hirokawa Kouichirou)] Love Style Plus (Love Plus) [English] [shakuganexa]
(C65) [INFINITY-FORCE (Various)] BL Are Go!! (Machine Robo Rescue)
(Puniket 21) [Hirokaworld (Hirokawa)] Kojikabon Plus (Kodomo no Jikan)