[Semakute Kurai (Kyouan)] Yuutou Idenshi to Rettou Idenshi ni Yoru Shussan Sareta Kodomo no Nouryokuchi Sokutei Jikken Oyobi, Mesu no Nikutai-teki Henka no Kiroku (Touhou Project)
(C95) [Asanebou Crisis (Akaneman)] Kouhai Nanpa Beach Luluhawa (Fate/Grand Order)
(C86) [CIRCLE ENERGY (Imaki Hitotose)] Hime Injo Jikken wa Goku-hen (Hyper-Anna)
[TeruTeruGirl (Amano Teru)] Hansyoku Jikken
Kawaii Kouhai ga Shiboritoru no o Yamete Kurenain desu.
Netorare Kouhai Kanojo 2
Saimin Application Jikken Kiroku 1
Tomodachi to Jikken Shite Miru Hon. Zenpen
[Asmodeus Seiyaku (Isogani)] Kajuun Bokujou no Jikken ~Maaya-kun o Juukan Shichaou~ [Digital]
Koakuma na Kouhai no Les Dorei ni Sareta Majime na Fuuki Iinchou
[Ichiko] Fujun Isei Kouhai no Susume [Digital]
Kouhai-chan ni Eroi Koto sareru Hon 1~4
[Mitsunoho] Naburi Tokidoki Shasei ~Kouhai no Joshi ni Makete Shasei Saserareta Ore~ [Chinese] [沒有漢化] [Digital]
(C92) [Makuu Gundan (Shinozuka Atsuto)] Ganbaru Kouhai (Fate/Grand Order) [Chinese] [黑锅汉化组]
(C89) [Shimanto Seiryuu (Shimanto Youta)] Senpai-kun to Kouhai-chan
(COMIC1☆13) [Akapenguin (Asahina Hikage)] Tawawa na Kouhai-chan 2 + Tawawa na Omakebon (Getsuyoubi no Tawawa)
(C79) [Mystic Chord (Gyro Amarume)] Ore no Kouhai ga... (ry (Ore no Imouto ga Konna ni Kawaii Wake ga Nai)
Ijou Chitai ~Kanojo wa Boku no Jikken Dorei~ Kanzenban
Enjo Kouhai 10
[Athome Shuka (Takunomi)] Enjo Kouhai IF [Chinese] [无毒汉化组] [Digital]
Enjoy Kouhai Links 3
Kouhai ga!
[Tohgarashi Hideyu] Dokidoki Jikken Note Ch. 1-4
Dekkai Kouhai Chicchai Senpai | 大后辈小前辈
Akashi Seijuurou to Biyaku no Jikken
[Terasu MC] Kokujin no Tenkousei NTR ru (5) Kouhai o NTR ru [English][Bleached]
[Ue ni Aru Mikan (Reitou Mikan, Amuai)] Shisshoku Shita Ore ga Seitai Tenkan Sochi de Kouhai no Jijo ni!? [English] [desudesu]
kohri no senshi buruaishikuru chijoku no sennou jikken zempe
(C88) [Nagiyamasugi (Nagiyama)] Hifuu Ryoujoku 4 Renko Okusuri Jikken (Touhou Project) [English] [robypoo]
[Mda Starou] Shinjin Kouhai Kiriko-san (COMIC BAVEL 2018-09) [Chinese] [無邪気漢化組]
Kouhai Bon | 후배의 책
Aniki ni Jikken sarechimatta | How I Became Aniki's Test Subject
Kawaii Kouhai ni Otosaresou | My Cute Kouhai seems to be Depressed
[Zenra QQ] Fellatio Kouhai, Otouto ni naru
Kouhai Servant ga Dosukebe na Ken
(C93) [kulmov_ (Kurowa)] Kouhai Channel (Fate/Grand Order)
Enjo Kouhai 12
Kouhai Danshi ni Netorare SEX
[Pistachio] Futanari Senpai x Rugby-bu Kouhai-kun
Kouhai Kanojo Tsujinaka-chan no Oshioki
(C94) [COMEX (Zhen Lu)] Kouhai no Amai Ryouhou (Fate/Grand Order) [Chinese] [黑锅汉化组]
Houkago no Kyoushitsu de Kouhai to Jou
Seiteki Kachikan Gyakuten Series "Tobiori Jisatsu Shisou na Kouhai o Ecchi de Yamesaseru Hanashi"
[Dhibi] Ishuzokukan Kouhai (COMIC X-EROS #52) [Chinese] [沒有漢化] [Digital]
[Aimaitei (Aimaitei Umami)] Kurogal Kouhai Otokonoko DeliHeal ~ Gyaku Anal Course [Digital]
(C86) [Rodiura. (Rage)] Kouhai-chan ni Eroi Koto sareru Hon
[Triangle! (Maple, Yami Satori)] Kurage Musume-chan no Amaama Aigan Kouhai Nikki [Digital]
(C71) [Parupunte (Fukada Takushi)] Rakugaki Jikken Hon 3 (Code Geass)
Elf Sakusei Jikken Maetsu ni Ochiru Kiyoki Tamashii
Lust Order ~Beast-kei Marshmallow Kouhai~
[Arimura Daikon] Saikin Senpai ni Kamatte moraete inai Kouhai Nasubi-chan | Lately Senpai Hasn't Been Paying Much Attention To His Kouhai Mash (Fate/Grand Order) [English] {Doujins.com}
[AstroQube. (masha)] Kouhai no Tangan-chan | Kouhai-chan the Mono-Eye Girl [English] [Digital]
(C81) [i.r.o.Zi (Mutsuki Ginji, Aoi Shinji)] Nikujiru Rika Jikken (Boku wa Tomodachi ga Sukunai)
[Mayonnaise Bakufu] hookago jikken kurabu