(C92) [Makuu Gundan (Shinozuka Atsuto)] Ganbaru Kouhai (Fate/Grand Order)
Senpai and Kouhai + Extra
[Nounai Kanojo (Kishiri Toworu)] SOS-Dan ni Youkoso! (The Melancholy of Haruhi Suzumiya)
[Aimaitei (Aimaitei Umami)] Kasshoku Otokonoko DeliHeal no Erohon ~Yattekita Shimakaze-kun wa Daigaku no Charai Kouhai de――?! Hen (Kantai Collection -KanColle-) [Digital]
Kanojo no Shinro Soudan ~Kanojo no Kokoro wa Aitsu ni Ubawarete~
Shokushu Kyousei Kouhai
[AstroQube. (masha)] Kouhai no Tangan-chan #4 | Kouhai-chan the Mono-Eye Girl #4 [English] [Digital]
Senpai-kun to Kouhai-chan
(C86) [Rodiura. (Rage)] Kouhai-chan ni Eroi Koto sareru Hon
(2021-03 Akihabara Chou Doujinsai) [Popochichi (Yahiro Pochi)] Rental Kanojo Osawari Shimasu 04 (Kanojo, Okarishimasu) [English]
[Tsukemayuge (Yuzugin)] "Kouhai no Ashi o Mae ni Gaman Dekinakatta" nado to Kyoujutsu Shite Ori [Digital]
Kouhai Bon
[Gogo book (Itsutuse)] Ore to Imouto to Kouhai no Rankou Cosper (Ore no Imouto ga Konna ni Kawaii Wake ga Nai) [Digital]
(C94) [Banana Koubou (Ao Banana)] Zenra Roshutsu Haikai Onanie ni Dohamari Shita Hentai Kouhai Mash Kyrielight (Fate/Grand Order) [English] [CGrascal]
Echi Echi Kouhai-chan!
Kanojo to Boku no Kouhai no Hanashi. | 女友與我的交配淫事。
[Mochimochi Dou] Netorare Kanojo ~Kanojo no Koe wa Boku ni wa Todokanai……~
Kouhai Kanojo no Seiteki na Jikken
(AC2) [Samurai Ninja GREENTEA] S-kyuu Iinari Hatsujou Kanojo (Kanojo, Okarishimasu)
[Athome Shuka (Takunomi)] Enjo Kouhai Swimming Costume [Chinese] [Digital]
[Nishida Megane] Sousakan Saya Zombie tono Kouhai Jikken (2D Comic Magazine Muragaru Zombie ni Okasareru Heroine-tachi Vol. 2) [Digital]
[Egoistic Honey, Allegro Mistic, Kuroneko-kan (Hadumi Rio, Takano Yuki, Muririn)] Kouhai ni Sarechau Hon [Chinese] [佐倉七海个人翻訳] [2018-08-26]
(C94) [Banana Koubou (Ao Banana)] Zenra Roshutsu Haikai Onanie ni Dohamari Shita Hentai Kouhai Mash Kyrielight (Fate/Grand Order)
(Reitaisai 10) [Maruiro Kikou (846gou)] OL Megane Yuugi to Kouhai ga Zukkon Bakkon Suru Hon (Touhou Project)
Fukkou!? Ishu Kouhai -Mazoku to Ningen no Kyousei Jidai- 6-wa
(C76) [Nounai Kanojo (Kishiri Toworu)] I Can (Not) Choose (Neon Genesis Evangelion)
[MARUTA] Yuri Suki Kanojo wa Yuri Kanojo ga Dekinai Ch. 2 (COMIC Penguin Club 2014-08) [English] [CGrascal]
Boku no Mash no Kouhai Ryoku
(C83) [Hito no Fundoshi (Yukiyoshi Mamizu)] Sakura Sou no Ecchi na Orihon. (Sakura Sou no Pet na Kanojo)
Houkago no Kouhai
2D Comic Magazine NTR Les Kanojo ga Kanojo o Netottara Vol. 1
Kouhai Maid ga Osewa o Shite Kureru You desu
(C84) [Graf Zeppelin (Ta152)] Ore no Kouhai mo Imouto mo Kanojo de Bitch de Nikudorei. (Ore no Imouto ga Konna ni Kawaii Wake ga Nai)
Watashi dake no Kouhai
(C93) [Yuzuya (Yuzuha)] Kouhai Maid ga Osewa o Shite Kureru You desu (Fate/Grand Order) [Chinese] [花火汉化组]
Hiken-tai E no Kouhai Jikken
(C86) [Rodiura. (Rage)] Kouhai-chan ni Eroi Koto sareru Hon [English] [Crystalium]
Koukoku no Kouhai Kono Issen ni Ari, Kakuin Issou Bokki Doryoku Seyo
Uchi no Kouhai ga Iroiro Yuushuu Sugite Komatteru.
[Chiba Tetsutarou] Wadatsumi-sama (Naedoko ni Sareta Shoujo-tachi no Ishukan Kouhai Kiroku Vol. 2) [Chinese] [翠星石汉化] [Digital]
[Rodiura. (Rage)] Kouhai-chan ni Eroi Koto Sareru Hon 3 [English] [friggo] [Digital]
(C94) [Athome Shuka (Takunomi)] Enjo Kouhai 6 [English] [biribiri]
(C60) [Atelier Ms (Satsuki Mikazu)] Kyuukyoku Heiki Kanojo - Ultimate Weapon Kanojo (Sakura Taisen 3) [Incomplete]
[Okunoha] Fukkou!? Ishu Kouhai -Mazoku to Ningen no Kyousei Jidai- 6-wa [English] [FC] [Digital]
[Ogawa Eru] "Imouto no Karada no Kanojo" to "Kanojo no Karada no Imouto", Docchi no Naka ga Kimochi Ii? Chapter 1 [English]
[Modae Tei] DraQue Monster Joukan ~Slime Jou no Purupuru Zen Ana Kouhai~ | Dragon Quest Monster Adultery ~Slime Girl's Full Body Crossbreading~ (Dragon Quest Monsters) [English] [Digital]
[Juicy Fruits (Satomi Hidefumi)] Sakurasou no Toilet na Kanojo | The Toilet Girl of Sakurasou (Sakurasou no Pet na Kanojo) [English] {Afro} [Digital]
[Poppenheim (Kamisyakujii Yubeshi)] Kanojo ga Hoka no Otoko wo Eranda Riyuu X | The Reason Why She Chose Another Guy X (Nazo no Kanojo X) [English] [Ero Punch] [Digital]
[Nakamuratakumi (kemukemuke)] Chiisana Senpai to Ookina Kouhai | Small Senpai and Big Kouhai [English] [CDG Scans] [Digital]
[Yuzuki N Dash] Kanojo no Himitsu to Himitsu no Kanojo case.2 | Girlfriend's Secret, Secret Girlfriend - Case 2 (Futanarikko Lovers 3) [English] [Iris Caldor]
(COMIC1☆3) [VINEGER (Fujiwara Kanako)] Kanojo no Negai to, Kanojo no Negai (Shikkoku no Sharnoth ~what a beautiful tomorrow~)
[Nounai Kanojo (Kishiri Toworu)] Kyouran Kazoku Yawa (Kyouran Kazoku Nikki)
Bukatsu no kouhai wa otoko no musume
My Swim-teams's Kouhai had a Sex Change and is too Slutty
Kouhai ni Shidou Suru Momiji-chan
Saimin Kanojo Kanojo no Haha Takanashi Ouka
(C93) [kulmov_ (Kurowa)] Kouhai Channel (Fate/Grand Order) [English] [NHNL]
(C76) [Nounai Kanojo (Kishiri Toworu)] I can (not) choose. (Neon Genesis Evangelion)
[Nounai Kanojo (Kishiri Toworu)] Satori wa Tomodachi ga Sukunai (Touhou Project) [Digital]
[Aoi Dennou (Aoi Tiduru)] Kouhai Kanojo ni ASMR Kiiteru no ga Baremashita [English] [Digital]
Ore no Kouhai Kanojo ga Azatosugite Taerarenai Hon
[Aimaitei (Aimaitei Umami)] Kasshoku Otokonoko DeliHeal no Erohon ~Yattekita Shimakaze-kun wa Daigaku no Charai Kouhai de――?! Hen (Kantai Collection -KanColle-) [English] [Digital]