COMIC Masyo 2016-08
[Koga Ryouhei] PrelfIllust No3 HighComics
(Kouroumu 9) [Seishinkan Eikyuu (Various)] KogaSana wa Watashi no Paipaigasa (Touhou Project)
Surprise Meister KogaNue
Comic Megastore 2001-07, 08
(C66) [Shinkouzan Tozantai (Kogawa Yasushi)] Happa Tai 2 Revised Edition (ToHeart, Kizuato, and Magical Antique)
COMIC HOTMILK 2018-06 [Digital]
Chuunibyou Demo Ecchi Shitai
[R-Koga] Kitsu Kitsu Ch.02 [English] [ATF]
COMIC Muga 2004-02
COMIC HOTMILK 2019-04 [Digital]
[Anthology] Angel Halo Vol.1
[R-Koga] Tsumatte Yonde - Call me a wife!
Odoroki no Kogasa dezumu
[Kogaino] Eroseku!
COMIC HOTMILK 2017-11 [Digital]
COMIC Megastore 2011-02
(C87) [Seven Days Holiday (Shinokawa Arumi, Koga Nozomu)] Fallen Angela (Rakuen Tsuihou -Expelled from Paradise-)
Hinakan Hi! Vol. 05
COMIC HOTMILK 2019-06
COMIC Masyo 2018-08 [Digital]
(C83) [Takoyaki-batake (Takoyaki) Kogasa Surprise (Touhou Project) [English] [CGrascal]
COMIC Momohime 2006-02
(C87) [Seven Days Holiday (Shinokawa Arumi, Koga Nozomu)] Brilliant Christmas (Amagi Brilliant Park)
(SC2015 Summer) [Seven Days Holiday (Shinokawa Arumi, Koga Nozomu)] Bell-kun wa Uwakimono | Bell-kun Is A Cheater! (Dungeon ni Deai o Motomeru no wa Machigatteiru Darou ka) [English] [hopeless408]
COMIC Masyo 2021-04
COMIC Mugen Tensei 2017-07 [Digital]
(C85) [CELTRANCE (Kogaku Kazuya)] Mamimamix (Puella Magi Madoka Magica) [English] [potocat]
Omoide Level Genkai Toppa Shita Tsukioka Kogane wa Yonayona P to no Ecchi o Mousou Shite Onanie Shite Shimau
Suwarete Nomarete Kogasa-chan | Kogasa-chan Gets Sucked in and Swallowed
COMIC HOTMILK 2017-06
[R-Koga] Chicchai kedo, Nurunuru
COMIC Megastore 2009-07
COMIC Momohime 2007-02 Vol. 76
Aogami Shoujo no Junan - The Passion of Blue Hair Girls
(CCTokyo137) [ZERO SEVEN (Damu)] in itinere (Ensemble Stars!)
COMIC HOTMILK 2017-03 [Digital]
[R-Koga] Seijyo no Izumi
Comic Masyo 2005-09
COMIC XO 2008-08 Vol. 27
COMIC HOTMILK 2017-08 [Digital]
Mitsurin Tanken Bloom Journey
BUSTER COMIC 2014-11
(SPARK10) [Haramushi. (Kasaoka Shinichi)] Kyuuketsuki no Oshigoto (Ensemble Stars!)
(CT7) [Tsurikichi Doumei (Kogawa Masayoshi)] Tenjouin Asuka Only Hon (Yu-Gi-Oh! GX)
COMIC Masyo 2015-07
(C83) [MEGA-MIX (Nekoga Yoshiki)] Fairy Rondo (Sword Art Online)
ETOILE
xxCOMPLEX
[Anthology] Kono Hito Chikan Desu! Vol.2
(C84) [Konnyaku Nabe (magifuro Konnyaku)] Koga Ryona (Touhou Project)
COMIC Megastore 2006-08
Sakuya to Kogane ga Saimin de AV Debut Suru Hon
COMIC Masyo 2014-02
COMIC Megastore Alpha 2015-11
COMIC Megastore 2001-09
Comic Megastore 2009-03
COMIC Mate Legend Vol. 25 2019-02 [Digital]
(C92) [Shinkouzan Tozantai (Kogawa Yasushi)] Anoko no Mune wa Horizon (Log Horizon)
(CR25) [Tenny Le Tai, Kemigawa Doubutsu Byouin (R-Koga, Efink, Kona)] Nadenade Shite Kudasai (To Heart)
Hinakan Hi! Vol. 02
[Kogaino] Senpai Ijime
(C84) [Seven Days Holiday (Shinokawa Arumi, Koga Nozomu)] ULTIMARATIO (Sword Art Online) [English] [DirtyTranslations]
[TENNY-LE-TAI (R.Koga/Aru Koga)] Mun Mun Moon (Sailor Moon)
COMIC Masyo 2015-10
COMIC HOTMiLK 2013-07
COMIC Megastore 2010-10
(brilliant days 4) [Inukare (Inuyashiki)] Pillow Talk mo Oko Nomi de (Ensemble Stars!)
(C82) [Seven Days Holiday (Shinokawa Arumi, Koga Nozomu)] Marriage Experience (Sword Art Online)
COMIC Hime Dorobou 2009-09
COMIC Megastore Alpha 2013-11
COMIC Megastore 2004-08
Shitsuraku
Comic Megastore 2004-11
Seishun Buta Yarou X Mai X Tomoe
COMIC Masyo 2011-05
(C94) [Kansai Gyogyou Kyoudou Kumiai (Marushin)] Idol Nara Seikoushou No Kokoroe Kurai Arubeki Dato Omouyo Kogane Chan (THE iDOLM@STER: Shiny Colors) [Chinese] [無邪気漢化組]
COMIC Megastore Alpha 2014-11
Comic Megastore 2004-06
COMIC Megastore 2008-11
COMIC Masyo 2017-01
COMIC Masyo 2016-01
Ote, Mate, Itte
(COMIC1☆10) [Seven Days Holiday (Shinokawa Arumi, Koga Nozomu)] Kono Subarashiki Sekai o Mou Ichido - Wonderful World Once Again (Kono Subarashii Sekai ni Syukufuku o!) [Chinese] [绅士仓库汉化]
COMIC Megastore 2008-04
(Kouroumu 5) [Shigunyan] Tapopai ☆ Kogasa (Touhou Project)
COMIC Masyo 2012-08
(C74) [Kakogawa-ya (Kakogawa Tarou)] Party Bullets (Mahou Shoujo Lyrical Nanoha)
COMIC XO 2008-12 Vol.31
[Lolimate Seizou Koujou (Lolimate)] Uso no Odorokashikata o Oshierarete Tokuige ni Jissen suru Kogasa-chan (Touhou Project) [Digital]