(C92) [Rodiura. (Rage)] Kouhai-chan ni Eroi Koto Sareru Hon 5 [English] [Noraneko]
[Tsujigiri Onsen (Shimano)] growing youth 02 [Digital]
Hora Hora Senpai Koko ni Kawaii Kouhai-chan ga Imasu yo?
Saitei Senpai to Demi Kouhai-chan
[Rokumonsen (Tamahagane)] Roshutsu Shoujo Itan 7 Hen [English] [ATF] [Digital]
(C99) [studio A (Inanaki Shiki)] Kawaii Ore no Imouto to Kouhai ga Sasotte Kuru. - Komachi & Iroha always have sex with hachiman. (Yahari Ore no Seishun Love Come wa Machigatteiru.)
(C93) [kulmov_ (Kurowa)] Kouhai Channel (Fate/Grand Order)
[Rivajima (Yajima Index)] Mata Kouhai ni Buruma Kisasete Oshiri no Ana made... Senpai wa Mou Dame desu! (Amagami)
Rune Midgarts no Kouhai Jikken ~Archbishop Hen~
[Egoistic Honey, Allegro Mistic, Kuroneko-kan (Hadumi Rio, Takano Yuki, Muririn)] Kouhai ni Sarechau Hon [Chinese] [绅士仓库汉化] [2018-08-26]
[Athome Shuka (Takunomi)] Enjo Kouhai Soushuuhen 2 [Digital]
[Rokumonsen (Tamahagane)] Roshutsu Shoujo Itan [Digital]
Kanmusu Chakunin Inazuma Kyousei Ishu Kouhai
[Muraimura (Muraimura)] Nade Rin ga Onsen de (Yuru Camp)[English][Digital]
[Tsujigiri Onsen] Onyoku Burabura Shounen Bibouroku 4
[Kakutou Oukoku] Harami samurai 05 ~Onsen no Tera to Joukou no Omoi~ (WEB Ban COMIC Gekiyaba! Vol. 113)
(C76) [OTOMEKIBUN (Sansyoku Amido.)] Gakkou de Senshun! -Kouhai mo Issho- 2
(C95) [Kuma no Ana (Shirokuma A)] Gudako to Dosukebe Kouhai no Futanari Jijou (Fate/Grand Order)
[Tarutoru] Onsen [Eng]
Kouhai ni Odosarete
Boku wa Kouhai no Onahole
[Athome Shuka (Takunomi)] Enjo Kouhai 3 [Digital]
[Puchimaple (Hisagi)] Kouhai Danshi ni Netorare SEX 3 [Digital]
(C94) [Athome Shuka (Takunomi)] Enjo Kouhai Different Clothes [Chinese] [Decensored]
[Inanaki Shiki] Houkago Kouhai Note
[Arakure] Jelly Multiplication (Naedoko ni Sareta Shoujo-tachi no Ishukan Kouhai Kiroku Vol. 2) [Chinese] [濛濛1汉化] [Digital]
Netorare Kouhai Kanojo
Itoshigure ~Futari de Onsen Hen~
[Terasu MC] Otaku no Boku to Iikanjidatta Kuro Gal Kouhai o Netorareru Mini
(C83) [Hinareya (Onsen Panda)] Amaama Biyori 2 (Amagami)
Touhou Chara ga Doubutsu to no Akachan o Umu tame ni Kouhai Saserareru Juukan Hon
[Sirotaruto (Kotaru, Shirasaki Karu)] Itoshigure ~Futari de Onsen Hen~ (Kantai Collection -KanColle-) [Digital]
[Athome Shuka (Takunomi)] Enjo Kouhai 3 [Chinese] [无毒汉化组] [Digital]
Kouhai Sensou Zenpen
Erokute Kirei na Onee-san to Iku, Shippori Onsen Ryokou
(C61) [Maruarai (Arai Kazuki)] Onsen de Takkyu Gengashuu (Onsen de Takkyu)
C94 Omakebon Uzai Kouhai wa Pakoritai!
Mao-chan to Onsen Ryokou ni Iku Hon | A book about going on an onsen trip with Mallow-chan
Kouhai Sensou Zenpen | Kouhai War First Part
[Rokumonsen (Tamahagane)] Roshutsu Shoujo Itan Jyuuichi Hen [English] [ATF] [Digital]
Hora Hora Senpai Koko ni Kawaii Kouhai-chan ga Imasu yo? ch.6
[Muraimura (Muraimura)] Nade Rin ga Onsen de (Yuru Camp) [Chinese] [Digital]
[NARUHO-Dou (Naruhodo)] Yobai OK BakoBako Onsen!! (Naruto) [Digital]
Kouhai Nanpa Beach Luluhawa
Fujun Isei Kouhai no Susume
[Ohenari] Namaiki na Kouhai ni Omocha ni Sarete Doutei Ubawaremashita [English] [Akuma Scans]
(C67) [Kamidake Onsen] Ianryokou Toujitsu No Yoru 5 (Tenchi Muyou!)