大人のおもちや3巻
[Anthology] Aokan Special
(CT20) [OVACAS (Hirokawa Kouichirou)] Bouhatei no Onna. (Joshiraku)
Otonano Omochiya Vol.6 - Ch.4-5
(C78) [OVACAS (Hirokawa Kouichirou)] Love Style Plus (Love Plus)
(Puniket 12) [OVACAS (Hirokawa Kouichirou)] Sensei dazo! (Pani Poni Dash!)
Takamori Aiko hamedori manga
Haru Matsuri Chichi Matsuri 2010
[Shuudan Bouryoku (Murasaki Syu)] Takanashi-san-chi no 4 Shimai - 1 (WORKING!!)
COMIC Penguin Club Sanzokuban 2001-06
Otonano Omochiya Vol. 16
COMIC Penguin Club Sanzokuban 2000-09
(C83) [OVACAS (Hirokawa Kouichirou)] Buratei Heart. (Joshiraku)
Otonano Omochiya Vol. 16
COMIC Penguin Club Sanzokuban 2001-04
Otonano Omochiya Vol. 16
(Puniket 9) [Hirokaworld (Hirokawa)] Nyaa Hon
Hungar x Hungar One Pause (Hunter x Hunter One Piece)
COMIC Penguin Club Sanzokuban 2001-08 [Incomplete]
Magical? Banana
(C75) [Ovacas (Hirokawa Kouichirou)] Ovacas Style 2008 (Kannagi, Queen's Blade, Strike Witches)
Otonano Omochiya Vol. 15
COMIC Penguinclub Sanzokuban 2003-11
(C82) [OVACAS (Hirokawa Kouichirou)] Osaki mo Mae mo Marii-san. (Joshiraku)
(C65) [INFINITY-FORCE (Various)] BL Are Go!! (Machine Robo Rescue)
(Tougetsu-sai) [OVACAS (Hirokawa Kouichirou)] IYASI-K (Pani Poni)
(C66) [OVACAS (Hirokawa Kouichirou)] OVACAS SKETCH 5 (Pretty Cure)
Otonano Omochiya Vol.13
(CSP4) [OVACAS (Hirokawa Kouichirou)] Haru Matsuri Chichi Matsuri (School Rumble, Mai-HiME)
KupaaBon 3
(Puniket 21) [Hirokaworld (Hirokawa)] Kojikabon Plus (Kodomo no Jikan)
[Hirokawa Kouichirou] A to Z
Otonano Omochiya Vol. 15
(C90) [Hooliganism (Murasaki Syu, Hirokawa Kouichirou)] Kono Subarashii Demi-chan no Demi Sauce! (Demi-chan wa Kataritai, Kono Subarashii Sekai ni Syukufuku o!)
(C99) [Otonano Omochiya (Hirokawa)] Otonano Omochiya 17 [Chinese]
Otonano Omochiya 6 Kan
(C64) [Infinity-Force (Mercy Rabbit, Rokujou Mugi, Buruma Hogero, Hirokawa Kouichirou, Yamashita Woory)] MRR A GO!! (Machine Robo Rescue)
(C60) [OVACAS (Hirokawa Kouichirou)] OVACAS SKETCH 3 (Various)
(C65) [Infinity-Force (Various)] BL Are Go!! (Machine Robo Rescue)
[Otonano Omochiya (Hirokawa)] Otonano Omochiya Vol. 16 [Chinese]
(C66) [INFINITY-FORCE (Various)] VS∞ VURSUS INFINITY (Capcom vs. SNK)
[Anthology] Love Chara Taizen No. 7 (Various)
(C69) [KNOCKOUT (Various)] Oshiri de Kyu! 9 (Various)
(Comic Castle Final) [Nipopo Crisis, OVACAS (Genka Ichien, Hirokawa Kouichirou) Patsukin Dynamite HEAVEN (Bakusou Kyoudai Lets & Go!!)
(COMIC1☆2) [OVACAS (Hirokawa Kouichirou)] Kurobeta (Minami-ke)
(C78) [Shuudan Bouryoku (Murasaki Syu)] Hooliganism 17 Record of ALDELAYD Act.12 Exhibition DX9 (English) =LWB=
Otonano Omochiya 6 Kan Ch. 1
(C76) [OVACAS (Hirokawa Kouichirou)] Houkago XX Time | After School XX Time (K-ON!) [English] [Darknight]
(C64) [Abellcain (Fujimaru Arikui)] Lucky Come Come (Kujibiki Unbalance)
[Amadeus No Isan] Rapid Game {To Heart 2}
(C74) [Hirokaworld (Hirokawa)] Akiratama (Lucky☆Star)
Otonano Omochiya Vol. 14
(C72) [Ovacas (Hirokawa Kouichirou)] Lucky Punch (Lucky Star) [English] [desudesu]
[INFINITY-FORCE (Various)] Digitama 04 FRONTIER (Digimon Tamers, Digimon Frontier)
[COMIC] Penguinclub Sanzokuban 2003-02
(C79) [OVACAS (Hirokawa Kouichirou)] Tenshi(Bitch) ni Love Song o! (Panty & Stocking with Garterbelt)
[Hirokawa Tomo] Fresh Meat!
(C55) [OVACAS (Various)] Heppoko Anime Chinpure Koupure (Various)
[ANTHOLOGY] Meganekko Deluxe
[Hirokawa Kouichirou] Deep Trip
(C65) [OVACAS (Hirokawa Kouichirou)] FLOW MY TEARS A SENIOR SAID (Uchuu No Stellvia)