Tsukenaku Temo Daijoubu Desuyo? ~Koga Koharu Hen~ Preview
COMIC Masyo 2016-07
[R-Koga] Papa no Seikyouiku - Papa's Sex Education
Mutant Colors Vol. 2
COMIC Megastore 2009-02
COMIC Megastore 2007-03
Byousoku de Osu Ochi suru InCha na Futanarikko Kanzenban
COMIC Momohime 2006-03 Vol. 65
COMIC XO 2008-12 Vol.31
COMIC Megastore 2008-10
COMIC Megastore 2010-12
(C64) [Shinkouzan Tozantai (Kogawa Yasushi)] Happa Tai 1 (ToHeart, Kizuato, and Magical Antique)
[Tenny Le Tai] Konoko Nekonoko
(Futaket 4) [abgrund (udk)] Taru Yume (Narutaru)
Houjou-ke no Inbi naru Nichijyou
[Anthology] Hinakan 3
(C75) [abgrund (udk)] BD! (Narutaru)
_Kakogawa_Tarou__Bent_love_expression__LoLi-Femdom_
[R-Koga] Innocent Sex
COMIC Momohime 2004-01
(C49) [Ganso Sonoda Ya (Various)] Chousen Ame Ver.08
Comic Megastore 2007-07
Soushuuhen VIRTUAL TO HOLE
(C75) [abgrund (udk)] Taru Yume 0 (Narutaru) [Chinese] [Incomplete]
COMIC Momohime 2007-03
COMIC Megastore 2013-01
(C66) [Shinkouzan Tozantai (Kogawa Yasushi)] Happa Tai 2 Revised Edition (ToHeart, Kizuato, and Magical Antique)
COMIC HOTMILK 2018-10 [Digital]
[Tsurikichi-Doumei (Kogawa Masayoshi)] Oudou ~Suichoku Rakka Shiki Buren Buster no Shou~ (Ojamajo Doremi)
[Kogaku Kazuya] Bukkorori Ch. 1-5
COMIC Masyo 2013-12
COMIC HOTMILK 2018-03 [Digital]
COMIC HOTMILK 2018-06 [Digital]
COMIC Momohime 2006-01
Nue Koga ni Ippouteki ni Sakusei Sareru Hon
Comic Megastore 2003-12
(C86) [CELTRANCE (Kogaku Kazuya)] An→Saya Pakorissimo (Puella Magi Madoka Magica)
[CELTRANCE (Kogaku Kazuya)] Mama Hame Sex (Tsuya) [Chinese] [魔劍个人汉化] [Digital]
(COMIC1☆13) [Seven Days Holiday (Shinokawa Arumi, Koga Nozomu)] Bougin (Ryuuou no Oshigoto!)
(C83) [Seven Days Holiday (Shinokawa Arumi, Kogabo)] Mad Tea Party (Sword Art Online) [English] [EHCOVE]
Comic Megastore 2001-02
(C94) [Goromenz (Yasui Riosuke)] Hamedori Koga-tan (THE iDOLM@STER: Shiny Colors)
[R-Koga] Tsukumimi 2
Sakuya to Kogane ga Muchimuchi Mizugi de Ecchi na Gohoushi Shichaimasu!
Cocoon Party
[R-Koga] Tsukumimi
(C82) [Penpengusa Club, MEGA-MIX (Katase Minami, Nekoga Yoshiki)] Kasoku Sekai e Youkoso 2 (Accel World)
[Koganemushi] Tori TF ni Kansuru Kousatsu to Renshuu
Comic Megastore 2004-10
[Kogaino] Black Five [English]
Comic Megastore 2004-02
COMIC HOTMiLK 2013-07
COMIC HOTMiLK 2014-03
(C87) [nocohica (Yuika)] Kirameki Winter Holiday | Sparkling Winter Holiday (Love Live!) [Chinese] [沒有漢化]
COMIC Muga 2004-02
Hinakan Hi! Vol. 04
(C75) [abgrund (udk)] Taru Yume 4 (Narutaru) [Chinese] [刷牙子漢化]
[Ogeretsudan (Shinjima Saki)] Scatrina
[CELTRANCE (Kogaku Kazuya)] Mama Hame Sex (Tsuya) no San (Mae) [Chinese] [發燒狼友個人漢化]
[Anthology] Kono Hito Chikan Desu! Vol.01
COMIC HOTMILK 2017-01 [Digital]
Fanbox
COMIC Momohime 2006-02
[CELTRANCE (Kogaku Kazuya)] M.P.E.C. - Madopanenecharge (Puella Magi Madoka Magica) [Digital]
(CR25) [Tenny Le Tai, Kemigawa Doubutsu Byouin (R-Koga, Efink, Kona)] Nadenade Shite Kudasai (To Heart)
COMIC Masyo 2018-02 [Digital]
(777 FESTIVAL 2nd) [Seven Days Holiday (Shinokawa Arumi, Koga Nozomu)] Ume Zanmai (Tokyo 7th Sisters)
Tsukioka Kogane no Dosukebe Lesson
COMIC Masyo 2011-11 [Digital]
[R-Koga] Bubunteki Otonaka Keikaku [English] [biribiri]
(brilliant days) [Mayonaka (Ohiru)] it boy (Ensemble Stars!)
COMIC Megastore Alpha 2014-10
Hina no Papa Katsu Funtouki | 陽菜的幹爹奮鬥記
[R-Koga] Higyaku Kyoushitsu [Chinese]
COMIC Masyo 2014-12
COMIC Masyo 2013-04
[R Koga] Tsukumimi 2
COMIC Masyo 2011-09
[H-Magazine] Comic MoeMax - Vol.010 [2008-03]