Bitch Ikka no Imouto ga Futanari Kouhai no Fudeoroshi Shitara Shinikaketa Hanashi.
Naburi Tokidoki Shasei ~Kouhai no Joshi ni Makete Shasei Saserareta Ore~
Atarashii Jikken
Rikutsuppoi Kouhai-chan to Rikutsunuki de Majiwaru made no Hanashi
(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)
Kouhai no Oppai ga Suki Sugiru | 我太喜欢后辈的奶子了
[TeruTeruGirl (Amano Teru)] Hansyoku Jikken
kouhai rapes senpai [himawari no tane] (short version)
Jikken Shimai Experiment Sisters
[Triangle! (Maple, Yami Satori)] Kurage Musume-chan no Amaama Aigan Kouhai Nikki [Digital]
Dokidoki Jikken Note Ch. 1-4
[Keito no Mori (Wool)] Tomodachi to Jikken Shite Miru Hon. Kouhen | A book about experimenting with your friend, part 2 [English] {Chin²} [Digital]
[Furuya] Sherry-chan Kouhai jikken kiroku [SMDC] [English]
(C71) [Parupunte (Fukada Takushi)] Rakugaki Jikken Hon 3 (Code Geass)
Deka Chichi Terrorist no Kousei Kouhai Jikken
Fuchou to Kouhai no Oshasei Jigoku
Dekkai Kouhai Chicchai Senpai | 大后辈小前辈
(C88) [Rodiura. (Rage)] Kouhai-chan ni Eroi Koto sareru Hon2
(C92) [Rodiura. (Rage)] Kouhai-chan ni Eroi Koto Sareru Hon 5 [Chinese] [夢之行蹤漢化組]
Arisa no Jikken Kiroku 13 -Botai Hinpyou-kai-
[AstroQube. (masha)] Kouhai no Tangan-chan #4 | Kouhai-chan the Mono-Eye Girl #4 [English] [Digital]
(C95) [Asanebou Crisis (Akaneman)] Kouhai Nanpa Beach Luluhawa (Fate/Grand Order)
C94 Omakebon Uzai Kouhai wa Pakoritai!
Senpai ni Jibun ga Mesu de Aru Koto o Wakarasareru Kouhai Zoku
[Pistachio] Futanari Senpai x Rugby-bu Kouhai-kun
(COMIC1☆6) [Alpha to Yukaina Nakamatachi (Alpha)] Kawaii Kouhai ni Otosaresou
Suzumiya Haruhi no Jikken
(COMIC1☆12) [ELHEART'S (Ibuki Pon)] Hadaka Apron no Bou Kouhai to Ichaicha Suru Hon (Fate/stay night) [Chinese]
Kouhai no Tangan-chan
Ahoppoi Kouhai o Muriyari Osottara Gyakuni ○ Sareta
Kouhai no Tangan-chan #5
Kajuunn Bokujou No Jikken ~Maaya Kun Wo Juukan Shichaou~
[Tsukemayuge (Yuzugin)] "Kouhai no Ashi o Mae ni Gaman Dekinakatta" nado to Kyoujutsu Shite Ori [Digital]
[Yam] Kuroko tan de jikken manga (Toaru Kagaku no Railgun) [Chinese] [随手汉了个化]
(C95) [trueblue (Annie)] Cos Shite Shiyo! Kouhai Hen (Sanoba Witch)
[Urushiya Seitai Jikkenshitsu (Mimuda Ryouzou)] Tayuriko Mix [Digital]
(COMIC1☆13) [Athome Shuka (Takunomi)] Enjo Kouhai 5 [English] [biribiri]
Koori no Senshi Blue Icicle Chijoku no Sennou Jikken Chuuhen
[Aimaitei (Aimaitei Umami)] Kasshoku Otokonoko DeliHeal no Erohon ~Yattekita Shimakaze-kun wa Daigaku no Charai Kouhai de――?! Hen (Kantai Collection -KanColle-) [English] [Digital]
Hijiri no Kiken na Seiyaku Jikken
Yandere Kouhai Kyouiku Disciplining Yandere Colleague
(COMIC1☆11) [Athome Shuka (Takunomi)] Enjo Kouhai 2
Sousakan Saya Zombie tono Kouhai Jikken
Enjo Kouhai 2
Shouganai naa Kono Hentai Uzai Kouhai
Kouhai no Momiji to Ichaicha Love Love suru Copy Bon
[Rodiura. (Rage)] Kouhai-chan ni Eroi Koto Sareru Hon 3 [English] [friggo] [Digital]
[Modae Tei] DraQue Monster Joukan ~Slime Jou no Purupuru Zen Ana Kouhai~ (Dragon Quest Monsters) [Digital]
(COMIC1☆13) [Athome Shuka (Takunomi)] Enjo Kouhai 5
Kouhai no Shitsukekata Nadametari Odoshitari ○○ shitari - | 对后辈的教育方法:可以亲切可以严厉也可以OO——
[Akitarainu (Chakkaman)] Touhou Chara ga Doubutsu to no Akachan o Umu tame ni Kouhai Saserareru Juukan Hon (Touhou Project) [English] [ARMAE] [Digital]
Ore no Kouhai to Imouto ga Neoki ni Osotte Kuru. =Fureta7=
Kouhai ni Shidou Suru Momiji-chan
[Urushiya Seitai Jikkenshitsu (Mimuda Ryouzou)] Higenjitsu Rinri Kyousei Kikou [Digital]
(C92) [Kanden Shoujo Chuuihou (Mafuyu)] Hentai Senpai to Yajuu Kouhai (Fate/Grand Order)
Ore no Kouhai to Imouto ga Neoki ni Osotte Kuru.
Kabane Hanshoku Jikken
NTR Kanojo ~Yandere Kouhai ni Futanari-ka Saserarete Kairaku Ochi Saserareta Onna~
Enjo Kouhai Soushuuhen 1
(C95) [trueblue (Annie)] Cos Shite Shiyo! Kouhai Hen | Let's Do It With Cosplay! Kouhai Edition (Sanoba Witch) [English] {Doujins.com}
Kouhai Sensou Zenpen
Kouhai Jikken | Mating Experiment
Joushiki Henkan Switch: Namaiki na Kouhai
[Nigiri Usagi] Senpai ni Jibun ga Mesu de Aru Koto o Wakarasareru Kouhai Zoku [Zenpen] | 被前輩教做人認清自己是雌性的後輩·續【前編】[Chinese] [天帝哥個人漢化]
Kawaii Kouhai no Tame Naraba…? | For The Sake of My Cute Junior…? {Hennojin}
[Shomu] Josou Kouhai-kun x Otokogirai-chan | Crossdressed Kouhai-kun x Man-Hater -chan (COMIC Shingeki 2016-06) [English] [N04H]
Kouhai no Tangan-chan #3
[Kashipan Koubou (Iisuto Kin)] Chuushaki to Jikkentai to Mayuri-sama ...no Jikken Teki Nichijou (Bleach)
Rune Midgarts no Kouhai Jikken ~Archbishop Hen~
[Ginto] Haha wa Kouhai no Niku Benki
Hitokui Nezumi no Jintai Jikken
(C94) [COMEX (Zhen Lu)] Kouhai no Amai Ryouhou (Fate/Grand Order)
(C83) [Ciao! (Kanan)] Akashi Seijuurou to Biyaku no Jikken (Kuroko no Basuke) [English] [AkaKuro]
[Akitarainu (Chakkaman)] Touhou Chara ga Doubutsu to no Akachan o Umu tame ni Kouhai Saserareru Juukan Hon (Touhou Project) [Digital]
[Can Do Now! (Minarai Zouhyou)] B.O.W. to Hito tono Kouhai Jikken Houkokusho | B.O.W And Human Crossbreeding Experiment Report (Resident Evil) [English] [SaHa]
(Gunreibu Shuho & Houraigekisen! Yo-i! Goudou Enshuu 5Senme) [Ichino Nijou (GeNB)] R.E.M.2 Seishoku Jikken Ninmu 2 (Kantai Collection -KanColle-)
Senpai Kouhai Otoko Onna Jijou - Senpai Kouhai a Man and Woman's Circunstances
Seiteki Kachikan Gyakuten Series "Tobiori Jisatsu Shisou na Kouhai o Ecchi de Yamesaseru Hanashi"
[Erect Sawaru] Jikken! After School (Oppai Infinity!) [English] =TV= [Decensored]
[Fukugou Marjoram (Sonokawa Sono)] Sekai de Ichiban Bonyuu ga Deru Rugby-bu Captain desu ga, Kouhai to 69 Suru no wa Hen deshou ka? (ALL OUT!!) [Digital]
Ichinose Shiki no Shoukibo na Jikken
Saenai Heroine Series Vol. 6 Saenai Kouhai Shoujo no Sodachikata
Uruwashiki Shangri-La de Kyousei Kouhai
Cos Shite Shiyo! Kouhai Hen | Let's Do It With Cosplay! Kouhai Edition
[Okunoha] Fukkou!? Ishu Kouhai -Mazoku to Ningen no Kyousei Jidai- 7-wa [Digital]
(Waga Te ni Hikigane o 13) [Kuusou Kyuuka (Mikoto Kei)] Trion Hokyuu System Jikken Kiroku (World Trigger)
Shinchou 175cm no Rikujou Shoujo wa Kouhai Danshi no Seishi o Nomitagaru
Tomodachi no Youna Otaku Kouhai to Deisui Ecchi
[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]
Machikirenai Kouhai Kanojo Tsujinaka-Chan
(C92) [Akapenguin (Asahina Hikage)] Tawawa na Kouhai-chan (Getsuyoubi no Tawawa)
Dokuzetsu Kouhai DK wa Ore Senyou Kanojo
[DL Mate] Saimin Jikken
(C92) [Kanden Shoujo Chuuihou (Mafuyu)] Hentai Senpai to Yajuu Kouhai (Fate/Grand Order) [English] [constantly]
(C93) [kulmov_ (Kurowa)] Kouhai Channel (Fate/Grand Order)
Giji Genkai Toppa Jikken Houkokusho 02
Bitch mo Sokuochi!? Doutei Chinpo wa Zetsurin Chinpo! Futago no Kouhai to Yarimakuri! Hamemakuri!!
[R-gen] Seishoku Kaihatsu Torawareta Elf no Choukyou Jikken | Sexual Development - Torture Training of Captured Elf (Mesu Hana ga Ochiru Toki) [English] [MTL] [Digital]
[Itaba Hiroshi] Jikken-dai | Laboratory Testing Bench (Oetsu Kakokyuu) [English] [maipantsu]
Kouhai-chan ni Eroi Koto Sareru Hon 5
Kouhai Futari ni Chinpo o Omocha ni Sareru Doutei-kun
[Zin Crow] Kunoichi -Seiyaku Jikken- ([Anthology] 2D Comic Magazine Kusurizuke SEX de Keiren Ahegao Acme! Vol. 2) [English] [biribiri] [Digital]
Shortcut de Megane no Niau Hitonatsukoi Beit no Kouhai ga Yarichin Douryou no Kuruma de Okurarete kara Mudankekkin Shiteiru
Ganbaru Kouhai
Sample H0539 Kouhai Report
(C94) [Hitsuji Kikaku (Muneshiro)] C94 Omakebon Uzai Kouhai wa Pakoritai! (Uzaki-chan wa Asobitai!) [Chinese] [夢之行蹤漢化組]
Hora Hora Senpai Koko ni Kawaii Kouhai-chan ga Imasu yo? ch.6
(C93) [Aoi Frasco (Alpini)] Senpai-kun to Kouhai-kun.
Kouhai-chan to Houkago Ecchi!
[Asmodeus Seiyaku (Isogani)] Kajuun Bokujou no Jikken ~Maaya-kun no Tomodachi to Issho ni...~ [Digital]
Shoujo Kousoku Zecchou Jikken
(Comic Generation) [Hisagoya (Momio)] Ichinose Shiki no Shoukibo na Jikken (THE IDOLM@STER CINDERELLA GIRLS)
(C93) [Killcy] Kouhai Servant ga Dosukebe na Ken (Fate/Grand Order) [Chinese] [CE家族社]
[ぴすたちお] Futanari Senpai x Rugby-bu Kouhai-kun
Dekkai Kouhai to Chicchai Senpai wa Nurunuru Shitai!
[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}
[MOZUKUYA (Hayasaka Natsuki)] Kaizou Jikken In Succession (Tokimeki Memorial)
Renko Okusuri Jikken
[Saragi (R5)] Genba no Kouhai [Digital]
[Sennomori Maitake] Ayakashi Kouhai Kitan ~ Onaka ni Shimi Wataru Atsui Tane ~ 1 [Digital]
(C70) [Yan-Yam] Eriko Ryojyoku Jikken (KiMiKiSS)
Kouhai Refle
(C90) [X ∞ MODEL (Asagiri Tendou)] Kabane Hanshoku Jikken (Koutetsujou no Kabaneri) [Chinese] [黑白灰汉化组]
(C94) [Banana Koubou (Ao Banana)] Zenra Roshutsu Haikai Onanie ni Dohamari Shita Hentai Kouhai Mash Kyrielight (Fate/Grand Order)
[Mitsunoho] Naburi Tokidoki Shasei ~Kouhai no Joshi ni Makete Shasei Saserareta Ore~ [English] [desudesu] [Digital]
[Okamoto Nyohei] Hakase to Joshu no Kozukuri Jikken [Chinese] [永生的喵個人漢化]
(C77) [Otomekibun (Sansyoku Amido.)] Gakkou de Seishun! -Kouhai mo Issho- 3 + Omake Bon
[Yuzuponz (Rikka Kai)] Homunculus 18-gou Seitai Energy Kyuushuu Tokkagata Sai Chousei Jikken Kiroku (Dragon Ball Z) [Digital]
[Kikunosukemaru] Senpai Kouhai Danjo Jijou | Senpai Kouhai a Man and Woman's Circunstances (COMIC Anthurium 024 2015-04) [English] [Danicco]
Tomodachi to Jikken Shite Miru Hon. Zenpen