(COMIC1☆4) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Yarudora - Otsukare Sampaguita hen (Toradora!)
(Comic Castle 2005) [Abellcain (Fujimaru Arikui)] EUREKA FIGHT (Eureka seveN)
[Hirokawa Kouichirou] A to Z
(COMIC1☆2) [OVACAS (Hirokawa Kouichirou)] Kurobeta (Minami-ke)
(Comic Castle Final) [Nipopo Crisis, OVACAS (Genka Ichien, Hirokawa Kouichirou) Patsukin Dynamite HEAVEN (Bakusou Kyoudai Lets & Go!!)
(C68) [OVACAS (Hirokawa Kouichirou)] MAI-CCHING (Mai-HiME)
(C76) [OVACAS (Hirokawa Kouichirou)] Houkago XX Time (K-ON!)
Kono subarashī Amahito-chan no demisōsu!
(C63) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Piano Lesson (The Big O)
(SC12) [Kacchuu Musume) (Various)] Shiritsu Sangendou Gakuen Koubaibu 4 Gou
(C71) [OVACAS (Hirokawa Kouichirou)] BITCH STYLE (WITCHBLADE)
Kaleido Superstar Retsuden
(C72) [Ovacas (Hirokawa Kouichirou)] Lucky Punch (Lucky Star)
(C57) [OVACAS (Hirokawa Kouichirou)] Doremix Deluxe (Ojamajo Doremi)
(Futaket vs. ABC ~Hentaisai~) [OVACAS (Hirokawa Kouichirou)] Gakuen Erotopia (Manabi Straight!) [English] [biribiri]
[Anthology] Aokan Special
(C82) [OVACAS (Hirokawa Kouichirou)] Osaki mo Mae mo Marii-san. (Joshiraku)
[INFINITY-FORCE (Various)] Digitama 04 FRONTIER (Digimon Tamers, Digimon Frontier)
(C75) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Dokuritsu Sakamoto Gurentai (Strike Witches)
(C63) [OVACAS (Hirokawa Kouichirou)] Shirobom (Bomberman Jetters)
(Puniket 12) [OVACAS (Hirokawa Kouichirou)] Sensei dazo! (Pani Poni Dash!)
(C72) [Ovacas (Hirokawa Kouichirou)] Lucky Punch (Lucky Star)
(CT20) [OVACAS (Hirokawa Kouichirou)] Bouhatei no Onna. (Joshiraku)
(C75) [Ovacas (Hirokawa Kouichirou)] Ovacas Style 2008 (Kannagi, Queen's Blade, Strike Witches)
Yuriika.
COMIC DOLPHIN 2004-06
Suika wa Kawa ga Sukeru made
[Anthology] Dennou Butou Musume Vol 5
(C71) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Maihama Vice (Zegapain)
[Anthology] Bishoujo Doujinshi Anthology 4 (Various)
(C90) [Hooliganism (Murasaki Syu, Hirokawa Kouichirou)] Kono Subarashii Demi-chan no Demi Sauce! (Demi-chan wa Kataritai, Kono Subarashii Sekai ni Syukufuku o!)
Men's Dolphin 1999-11-01 Vol.03
(C64) [Infinity-Force (Mercy Rabbit, Rokujou Mugi, Buruma Hogero, Hirokawa Kouichirou, Yamashita Woory)] MRR A GO!! (Machine Robo Rescue)
(SC33) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Fujioka Haruhi to Ecchi o Shiyou. 02 (Ouran High School Host Club) [English] [SMDC]
Doujin Anthology Bishoujo Gumi 2
(C82) [Kacchuu Musume (Various)] Shikabame (Tasogare Otome x Amnesia, Sankarea, Kid Icarus)
(C79) [OVACAS (Hirokawa Kouichirou)] Tenshi(Bitch) ni Love Song o! (Panty & Stocking with Garterbelt)
(C70) [OVACAS (Hirokawa Kouichirou)] Magical? Banana (Renkin 3-kyuu Magical? Pokaan)
After School XX Time
[Anthology] Aniparo Miki 4 (Various)
(C66) [OVACAS (Hirokawa Kouichirou)] OVACAS SKETCH 5 (Pretty Cure)
Love Style
(CSP4) [OVACAS (Hirokawa Kouichirou)] Haru Matsuri Chichi Matsuri (School Rumble, Mai-HiME)
(C72) [Ovacas (Hirokawa Kouichirou)] Lucky Punch (Lucky Star) [English] [desudesu]
(C62) [KNOCKOUT (Various)] Oshiri de Kyu! 7 (Various)
(C71) [OVACAS (Hirokawa Kouichirou)] BITCH STYLE (WITCHBLADE) [English] [desudesu]
Fujioka Haruhi to Ecchi o Shiyou.
(C73) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Fujioka Haruhi to Ecchi Oshiyou. 03 (Ouran High School Host Club)