(Reitaisai 10) [Maruiro Kikou (846gou)] OL Megane Yuugi to Kouhai ga Zukkon Bakkon Suru Hon (Touhou Project)
[Wakamatsu] Itsumo wa Rikutsuppokute Kanjou ga Nasasou na Kouhai-chan nanoni (CHINESE)
Aotte Kuru Kouhai o Wakara Seru!
[Misaki (Aoi Tiduru)] Ijiwaru de Amaama ~Kouhai Kanojo ni Tekoki de Aisarereru Ohanashi~
Kouhai Sensou Zenpen | Kouhai War First Part
[Athome Shuka (Takunomi)] Enjo Kouhai 12 [Chinese] [Digital]
(C92) [Kanden Shoujo Chuuihou (Mafuyu)] Hentai Senpai to Yajuu Kouhai (Fate/Grand Order) [English] [constantly]
Riyuu wa Fumei daga Ecchi Shite Kureru Kouhai
[Nekokaburi (Kuronomiki)] Lust Order ~Beast-kei Marshmallow Kouhai~ (Fate/Grand Order) [Chinese] [空中貓製作室 & 不咕鸟汉化组] [Digital]
[Nishida Megane] Sousakan Saya Zombie tono Kouhai Jikken (2D Comic Magazine Muragaru Zombie ni Okasareru Heroine-tachi Vol. 2) [Digital]
Kouhai Missed Memories | Kouhai's Missed Memories
[Mitsunoho] Naburi Tokidoki Shasei ~Kouhai no Joshi ni Makete Shasei Saserareta Ore~ [English] [desudesu] [Digital]
[Athome Shuka (Takunomi)] Enjo Kouhai 3 [Digital]
[Okunoha] Fukkou!? Ishu Kouhai -Mazoku to Ningen no Kyousei Jidai- 8-wa [Digital]
(C79) [Mystic Chord (Gyro Amarume)] Ore no Kouhai ga... (ry (Ore no Imouto ga Konna ni Kawaii Wake ga Nai)
[Inanaki Shiki] Houkago Kouhai Note | 放課後交配筆記本 [Chinese]
(C94) [Majimadou (Matou)] Uchi no Kouhai ga Iroiro Yuushuu Sugite Komatteru. (Fate/Grand Order)
Koisuru Kouhai no Manga
(C95) [trueblue (Annie)] Cos Shite Shiyo! Kouhai Hen | Let's Do It With Cosplay! Kouhai Edition (Sanoba Witch) [English] {Doujins.com}
(C95) [Contamination (eigetu)] Kouhai ga Yuuwaku Shite Kurunda ga (Fate/Grand Order)
Senpai ni Jibun ga Mesu de Aru Koto o Wakarasareru Kouhai Zoku
(C95) [R*kaffy (Aichi Shiho)] Astolfo Cos no Kouhai ni Kokuhaku Sarete Sex Shita Hanashi (Fate/Grand Order) [Chinese] [瑞树汉化组]
Kouhai no Tangan-chan #2
[Anthology] Naedoko ni Sareta Shoujo-tachi no Ishukan Kouhai Kiroku Vol.1 [Digital]
[Athome Shuka (Takunomi)] Enjo Kouhai 5 [Digital]
Kouhai-chan ni Eroi Koto sareru Hon 1~4
(C87) [Aroma Terrace (Niki)] Kouhai-chan to Asa kara Nyan Nyan
Houkago Kouhai Note | 放課後交配筆記本
(C92) [Akapenguin (Asahina Hikage)] Tawawa na Kouhai-chan (Getsuyoubi no Tawawa)
[DPg] Senpai ga Uchikomu Kouhai no Hanashi (Senpai ga Uzai Kouhai no Hanashi)
B.O.W. to Hito tono Kouhai Jikken Houkokusho | B.O.W And Human Crossbreeding Experiment Report
(C88) [Rodiura. (Rage)] Kouhai-chan ni Eroi Koto Sareru Hon 2 [English] [Doujins.com]
[Somejima] Ishu Kan Kouhai Bokujou | Interracial Rape Breeding Farm (Bessatsu Comic Unreal Ningen Bokujou Hen Vol. 2) [Colorized] [Digital]
Josou!? Saserarete Futanari Kouhai Servant ni Onnanoko ni Sarechau Hon
Kouhai no Bakunyuuko o Muriyari
(C91) [Athome Shuka (Takunomi)] Enjo Kouhai
Ishukouhai Kiroku 2
[ppatta] Yandere Kouhai Kyouiku | Disciplining Yandere Colleague [English] [Digital]
(C93) [Athome Shuka (Takunomi)] Enjo Kouhai 4
Dekkai Kouhai to Chicchai Senpai
Kouhai Sensou Zenpen
Seiso na Kouhai ga Kakure Do-M datta
Enjo Kouhai 10
(C88) [Rodiura. (Rage)] Kouhai-chan ni Eroi Koto sareru Hon2 [Chinese] [夢之行蹤漢化組]
Shinchou 175cm no Rikujou Shoujo wa Kouhai Danshi no Seishi o Nomitagaru
[Yamazaki Umetarou] Kinshin Kouhai ~Blood Ring~ [Decensored]
(COMIC1☆14) [Moe Hime Rengou (xin, obiwan)] FGO Carnival 19 - Kyuukyoku no C.C.C. Namaiki Kouhai-chan to Nama Lesson (Fate/Grand Order)
Kouhai-chan to Houkago Ecchi!
(SPARK9) [Dolce Einsatz (Tomoe Kiko)] Kouhai Therapy (Free!)
Fukkou!? Ishu Kouhai -Mazoku to Ningen no Kyousei Jidai―3wa
[Can Do Now! (Minarai Zouhyou)] B.O.W. to Hito tono Kouhai Jikken Houkokusho (Biohazard | Resident Evil)
Enjo Kouhai Swimming Costume | 원조교배 Swimming Costume
Kouhai-chan ni Eroi Koto Sareru Hon 6
"Kojin Satsuei" Danshiryou Doushitsu no Doutei Houkei Kouhai o Kyousei Onanie Kyousei Shasei Satsuei Kirokushuu
(C95) [Asanebou Crisis (Akaneman)] Kouhai Nanpa Beach Luluhawa (Fate/Grand Order)
Josou saserarete Futanari Kouhai Servant ni Onnanoko ni Sarechau Hon
Enjo Kouhai Different Clothes
Kouhai Danshi ni Netorare SEX 2
[Mutou Koucha] Tomodachi no Youna Otaku Kouhai to Deisui Ecchi [Digital]
(C93) [Labomagi! (Takeda Aranobu)] Netorare Kouhai Kanojo ~Shiranu Ma ni Ubaware Okasareta Shitai~
(COMIC1☆15) [MUGENKIDOU A (Tomose Shunsaku)] Echi Echi Kouhai-chan! [English]
[Seikatsu Seshishou (tt)] Kouhai to! [Digital]
(C94) [COMEX (Zhen Lu)] Kouhai no Amai Ryouhou (Fate/Grand Order) [Chinese] [瓜皮汉化]
Kouhai ga!
Kouhai-chan ni Eroi Koto Sareru Hon3
[Okunoha] Fukkou!? Ishu Kouhai -Mazoku to Ningen no Kyousei Jidai- 5-wa [Digital]
Kouhai futari no yousu ga okashii
Saikin Senpai ni Kamatte moraete inai Kouhai Nasubi-chan | Lately Senpai Hasn't Been Paying Much Attention To His Kouhai Mash
[Saragi (R5)] Genba no Kouhai [Digital]
Cos Shite Shiyo! Kouhai Hen | Let's Do It With Cosplay! Kouhai Edition
Maid to Kouhai Dochira ga Okonomi?
(C99) [Haitokukan] Touhou Suikan 7 Kouhai ni Itazura sarechatta Himekaidou Hatate (Touhou Project) [Chinese]
Kanojo to Boku no Kouhai no Hanashi.
Watashi no Hebionna ga Dosukebe no Kouhai ni Choukyou Sarete Ooyake no Ba de Dappi Suru Hon
[Toitoikai (Toitoi)] Natsu, Asedaku no Kouhai to (Fate/Grand Order) [Digital]
[Mda Starou] Shinjin Kouhai Kiriko-san (COMIC BAVEL 2018-09) [Chinese] [無邪気漢化組]
[Shishi Juuroku] Kouhai ni Shidou Suru Momiji-chan (Touhou Project)