(C70) [OVACAS (Hirokawa Kouichirou)] Magical? Banana (Renkin 3-kyuu Magical? Pokaan)
[Kantou Usagi Gumi] Pink Kami Keikaku (Various)
(C81) [Manchin Sakura (COSiNE ,Erect Sawaru and more) Chun-li san to COSiNE ni Shuu Shuunen Kinen Hon (Street Fighter)
Men's Dolphin 1999-11-01 Vol.03
(C71) [OVACAS (Hirokawa Kouichirou)] BITCH STYLE (WITCHBLADE)
[Hirokawa Kouichirou] Deep Trip
Otonano Omochiya 6 Kan
(Puniket 11) [Hirokaworld (Hirokawa)] Pachie-bon (3-nen B-gumi Kinpachi Sensei Densetsu no Kyoudan ni tate!)
Otonano Omochiya Vol. 13
(CR35) [Abellcain (Fujimaru Arikui)] KALEIDOSCOPE (Kaleidostar)
Pachie-bon
(C66) [INFINITY-FORCE (Various)] VS∞ VURSUS INFINITY (Capcom vs. SNK)
(C69) [OVACAS (Hirokawa Kouichirou)] 1-NEN C-GUMI MAHOGUMI (Pani Poni)
(C99) [Otonano Omochiya (Hirokawa)] Otonano Omochiya 17 [Chinese]
(C66) [OVACAS (Hirokawa Kouichirou)] OVACAS SKETCH 5 (Pretty Cure)
(C74) [OVACAS, Abellcain (Hirokawa Kouichirou, Fujimaru Arikui)] S.M.S Niyoukoso! (Macross Frontier)
Capricon I - Director's Cut
Otonano Omochiya Vol. 16
(C67) [OVACAS (Hirokawa Kouichirou)] HIME-hajimeru (My-HiME) [English] [SaHa]
COMIC Penguin Club Sanzokuban 2001-06
(Puniket 21) [Hirokaworld (Hirokawa)] Kojikabon Plus (Kodomo no Jikan)
(C60) [OVACAS (Hirokawa Kouichirou)] OVACAS SKETCH 3 (Various)
[Anthology] Dennou Butou Musume Vol 5
[Otonano Omochiya (Hirokawa)] Otonano Omochiya Vol. 15 [English]
(COMIC1) [OVACAS, Abellcain (Hirokawa Kouichirou, Fujimaru Arikui)] Itazura Drill (Tengen Toppa Gurren Lagann)
(SC19) [Abellcain, OVACAS (Fujimaru Arikui, Hirokawa Kouichirou)] Rotation (Gundam SEED)
COMIC Penguin Club Sanzokuban 2001-08 [Incomplete]
(C84) [OVACAS (Hirokawa Kouichirou)] Kedamono-tachi no YAMATO. (Space Battleship Yamato 2199)
[Hirokawa Kouichirou] Deep Trip | 銷魂之旅 [Chinese]
COMIC Penguin Club Sanzokuban 2001-04
[Anthology] Love Chara Taizen No. 6
(C70) [Knockout, Nikomark (Various)] Chougokubuto | Super Gokubuto (Various)
(C61) [Dangan Densetsu (Hirokawa Tomo)] Kirakira no Haru (AIR, Kanon)
[Shuudan Bouryoku (Murasaki Syu)] Takanashi-san-chi no 4 Shimai - 1 (WORKING!!)
[Hirokawa Kouichirou] PET LIFE
(C68) [OVACAS (Hirokawa Kouichirou)] MAI-CCHING (Mai-HiME)
(SC23) [Abellcain, OVACAS (Fujimaru Arikui, Hirokawa Kouichirou)] Precure Machine (Pretty Cure)
(Comic Castle Final) [Nipopo Crisis, OVACAS (Genka Ichien, Hirokawa Kouichirou) Patsukin Dynamite HEAVEN (Bakusou Kyoudai Lets & Go!!)
(C56) [OVACAS (Various)] Dore Mix (Ojamajo Doremi)
Comic Sigma Volume 1
[Otonano Omochiya (Hirokawa,Yukito)] Otonano Omochiya Vol.13 [Chinese]
(C79) [OVACAS (Hirokawa Kouichirou)] Tenshi(Bitch) ni Love Song o! (Panty & Stocking with Garterbelt)
[OVACAS (Hirokawa Kouichirou)] Gakuen Erotopia Kaiteiban (Manabi Straight!)
[Anthology] Aokan Special
Otonano Omochiya Vol.13
[Amatoro Bow] Hanarete Ite mo Hito ni Fureru Otoko
Otonano Omochiya 12 Futaba no Ohanashi Matome 2
(Puniket 19) [Hirokaworld (Hirokawa)] Shiikibi (Various)
(C55) [OVACAS (Various)] Heppoko Anime Chinpure Koupure (Various)
Magical? Banana
COMIC Penguinclub Sanzokuban 2003-12
(CT20) [OVACAS (Hirokawa Kouichirou)] Bouhatei no Onna. (Joshiraku)
Ovacas Style 2008
(SC32) [OVACAS (Hirokawa Kouichirou)] another day (Ojamajo Doremi)
Hungar x Hungar One Pause (Hunter x Hunter One Piece)
Otonano Omochiya 17
KupaaBon 3
[Hirokaworld (Hirokawa)] petta
(C66) [Shuudan Bouryoku (Various)] File/12 Record of Aldelayd - EXHIBITION DX4
Tenshi ni Love Song o!
[Yumeizukosya, OVACAS (Hirokawa Kouichirou)] Ebisu Taisen (Sakura Taisen)
(ABC 5) [OVACAS (Hirokawa Kouichirou)] Iro Iro Gal and Dou (Various)
COMIC Penguinclub Sanzokuban 2003-08
Love Style
COMIC Penguin Club Sanzokuban 2000-09
(C68) [OVACAS (Hirokawa Kouichirou)] MAI-CCHING (Mai-HiME) [English] [SaHa]
(C62) [KNOCKOUT (Various)] Oshiri de Kyu! 7 (Various)
Two Toned Romps
Otonano Omochiya Vol.6 - Ch.4-5
(C74) [Hirokaworld (Hirokawa)] Akiratama (Lucky☆Star)
(CSP5) [OVACAS (Hirokawa Kouichirou)] Haru Matsuri Chichi Matsuri 2010 EVENT EDITION (Various)
[Anthology] Love Chara Taizen No. 7 (Various)
Takamori Aiko hamedori manga
(C64) [Abellcain (Fujimaru Arikui)] Lucky Come Come (Kujibiki Unbalance)
Otonano Omochiya 6 Kan Ch. 1
[Dangan Densetsu (Hirokawa Tomo)] Fairy Shape (Final Fantasy VIII)
(C64) [KNOCKOUT (Various)] Oshiri de Kyu! 8 (Various)
(C82) [OVACAS (Hirokawa Kouichirou)] Osaki mo Mae mo Marii-san. (Joshiraku)
Kono subarashī Amahito-chan no demisōsu!
[ANTHOLOGY] Meganekko Deluxe
[OVACAS, Abellcain (Hirokawa Kouichirou, Fujimaru Arikui)] Deep impact (Cosmic Baton Girl Comet-san)