Netorare Kouhai Kanojo 2 ~Kairaku ni Mi o Yudane Hoteru Shitai~
(C94) [COMEX (Zhen Lu)] Kouhai no Amai Ryouhou (Fate/Grand Order)
Saenai Heroine Series Vol. 6 Saenai Kouhai Shoujo no Sodachikata
(C71) [T.N.Works | DOUWA-KENSETSU (Nomura Teruya)] NOS vol. 2 Nagato Yuki de Ooini Mousou Suru Tame no Shisaku Jikken Hon (The Melancholy of Haruhi Suzumiya)
[Arakure] Jelly Multiplication (Naedoko ni Sareta Shoujo-tachi no Ishukan Kouhai Kiroku Vol. 2) [Chinese] [濛濛1汉化] [Digital]
(C88) [Nagiyamasugi (Nagiyama)] Hifuu Ryoujoku 4 Renko Okusuri Jikken (Touhou Project) [Chinese] [CE家族社]
Futanari Elf to Himitsu no Jikken
(C94) [Athome Shuka (Takunomi)] Enjo Kouhai Different Clothes
Shouganai naa Kono Hentai Uzai Kouhai
[Mda Starou] Shinjin Kouhai Kiriko-san [English] [Hentai_Doctor] [Decensored] [Digital]
Saenai Heroine Series Vol. 9 Saenai Kouhai no Jishukurikata
Namaiki na Moto Kouhai no Nama Iki Showtime
[Aimaitei (Aimaitei Umami)] Kurogal Kouhai Otokonoko DeliHeal ~ Gyaku Anal Course (Fate/Grand Order) [Digital]
kohri no senshi buruaishikuru chijoku no sennou jikken zempe
(C82) [Minori Kenkyuujo (Jikken Shirou)] Outo Switch [English] [LWB + Anon]
(COMIC1☆6) [Adult House (Makishi Miya)] Shitara Sensei no Kimyou na Jikken
Zenra Roshutsu Shujinkanshi Onani ni dohamarishita Hentai Kouhai Mash Kyrielight
(C93) [MARCH (Minakuchi Takashi)] Boku no Mash no Kouhai Ryoku (Fate/Grand Order)
[Tomato Rice] Bakunyuu de Kouhai no JK to Paizuri Suru dake
Houkago no Kyoushitsu de Kouhai to Jou
Dokidoki Jikken Note Ch. 1
(COMIC1☆6) [Alpha to Yukaina Nakamatachi (Alpha)] Kawaii Kouhai ni Otosaresou | My Cute Kouhai seems to be Depressed [English] {Hennojin}
Kouhai Tanetsuke Onsen - Nishimura Yuki-chan ni Marking
[Kitto Daiji na Otoshimono (Ogami Kazuki)] Jikken! Ika Musume (Shinryaku! Ika Musume)
(Ryonaket 2) [Mukumukumoon (Mogiri)] Yousei Jikken (Touhou Project) [Chinese] [布洛基个人汉化]
Mamono Musume Oppai Shikou ~Robo Musume to Mech Master no Sakusei Jikken~
[ぴすたちお] Futanari Senpai x Rugby-bu Kouhai-kun
Igou Jikken [ENG]
kouhai rapes senpai [himawari no tane] (short version)
Pote Kouhai
(C91) [Athome Shuka (Takunomi)] Enjo Kouhai [English] [biribiri]
(C78) [Choco Mint] Seitei Jikken ~Hikisa Kareta Barrier Jacket~ (Magical Girl Lyrical Nanoha)
(C94) [RAID SLASH (Kurokoeda)] Shinsui Jikken Asashio (Kantai Collection -KanColle-)
Gasshukujo no Senpai Manager-tachi to -Kyuubyoudai Chinpo no Kouhai-
[Rodiura. (Rage)] Kouhai-chan ni Eroi Koto Sareru Hon 3 [Digital]
Kouhai no Oppai ga Suki Sugiru | 我太喜欢后辈的奶子了 Ch. 1-5
[Yuunagi no Senryokugai Butai (Nagi Ichi)] Kouhai-kun wa, Oreiro Hiyake Shounen! [Digital]
Kouhai-kun wa Kanari Choroi
[Mayonnaise Bakufu] hookago jikken kurabu
Kouhai-kun no Okazu ni Naru Onnanoko
(C95) [Akapenguin (Asahina Hikage)] Tawawa na Kouhai-chan 3 (Getsuyoubi no Tawawa)
Kono Haru, Kanojo to Issho ni Sotsugyou Shimashita ~Senpai x Kouhai Hamex Hen~
Kouhai no Tangan-chan #5
(Waga Te ni Hikigane o 13) [Kuusou Kyuuka (Mikoto Kei)] Trion Hokyuu System Jikken Kiroku (World Trigger) | 三离子补给系统实验记录 (境界触发者) [Chinese] [星野干拉个人翻译]
(C80) [Karibian (Keraton)] Seirogan Jikken | Burning Lust Pill Experiments (Touhou Project) [English] [Sharpie Translations]
(C88) [Rodiura. (Rage)] Kouhai-chan ni Eroi Koto sareru Hon2 [Chinese] [核弹团个人汉化]
Boku wa Kouhai no Onahole
Kyoudai Choukyou Jikken-tai | Brother & Sister Training Experiment
Watashi no Hebionna ga Dosukebe no Kouhai ni Choukyou Sarete Ooyake no Ba de Dappi Suru Hon
C94 Omakebon Uzai Kouhai wa Pakoritai!
(Reitaisai 10) [Saihate-Kukan (Hino Hino)] Tenshi-chan to Shokushu Jikken!? - Tentacle experiment with Tenshi-chan!? (Touhou Project)
Kouhai no Oppai ga Suki Sugiru | 我太喜欢后辈的奶子了 Ch. 1-4
Enjo Kouhai 7
(C70) [VISTA (Odawara Hakone)] Nagato Yuki no Jikken (The Melancholy of Haruhi Suzumiya)
(Dai 4 Tsugi ROOT 4 to 5) [Un-moto Shoko (Un-moto)] Giji Genkai Toppa Jikken Houkokusho 01 (Fate/Grand Order)
Akogare no Senpai ni ~Kouhai-san mo Issho!~
Koakuma na Kouhai no Les Dorei ni Sareta Majime na Fuuki Iinchou
Ura Mash NTR -Junsui na Kouhai ga Kyokon Gaijin ni Netorarete Boku o Ijimeru Akujo ni Naru made-
[Can Do Now! (Minarai Zouhyou)] B.O.W. to Hito tono Kouhai Jikken Houkokusho (Biohazard | Resident Evil)
(Puniket 21) [UROBOROS (Utatane Hiroyuki)] Yokoku to Jikken no Hon (Jewelpet Tinkle☆, Heart Catch Precure)
Kouhai ni ♥♥ Sarechau Hon
(C93) [Yuzuya (Yuzuha)] Kouhai Maid ga Osewa o Shite Kureru You desu (Fate/Grand Order) [Chinese] [花火汉化组]
(C80) [Karibian (Keraton)] Seirogan Jikken (Touhou Project)
Kabane Hanshoku Jikken
[Arakure] Jelly Multiplication (Naedoko ni Sareta Shoujo-tachi no Ishukan Kouhai Kiroku Vol. 2) [English] [biribiri] [Digital]
Otonashisou na Rikujoubu no Kouhai o Kousoku Shite Kairaku Choukyou
(C93) [LOFLAT (Prime)] Maid to Kouhai Dochira ga Okonomi? (Fate/Grand Order) [English] [NHNL]
Kouhai Kanojo no Seiteki na Jikken
[Ichiko] Fujun Isei Kouhai no Susume | 不純異性交配的好推薦 [Chinese]
Chaldea Shiki Seiyoku Shori System ~Kouhai to Seijo-tachi no Baai~