[Higashino Mikan] Kareshi ni Naisho de ❤ | Behind My Boyfriend's Back ❤ (COMIC Koh Vol. 3) [English] [sureok1]
(COMIC1☆9) [Atelier Lunette (Mikuni Atsuko)] Naisho Nano! -Haruhara-ke Sanshimai Monogatari- 2 [English]
[Kino Hitoshi] Kojin jugyou
[Mita Kurumi] Naisho no Photograph (COMIC ANGEL Club 2010-09)
(C93) [Zabuton Makura (Nakai)] Anoko ni Naisho no Uchiawase (THE IDOLM@STER CINDERELLA GIRLS) [English]
(COMIC1☆8) [TriaL3 (Various)] Naisho no Imouto Ecchi [Chinese] [佳奈助汉化]
[Koneko Gumi, Shounen Marionette (Poron, Kuonji Shutaka, Namao)] Naisho no Otogibanashi [English] {Shotachan}
(SC30) [P-Forest (Hozumi Takashi)] Otome no Naisho Nina-chan to iro iro... (Mai Otome)
[Matsumoto Yuuka] Naisho no Cute Boy
(C88) [Sweet Candle (Sakuraizumi Yuu)] Naisho no Asobi (THE iDOLM@STER CINDERELLA GIRLS)
[Ookami Uo] (Ryuushutsu) JSJC Naisho no Jian Ch. 1-5 [Chinese]
[Junk Center Kameyoko Bldg] Okaa-san ga Naisho de Hikikomori Musuko no Seishori no Aite o Shiteiru Hanashi.
[Jun&Yuri (Yuriko)] Tokubetsu Jugyou Shiyou! Kashima-chan! (Kantai Collection -KanColle-)
[Beater (daikung)] 體育課夭壽讚!Taiiku Jugyou wa Saikou daze! [Chinese] [Digital]
Sensei no ♥ Himitsu Jugyou
[Fireball Products] Seki Sensei No Kagai Jisshuu
[Syuuen] Delivery love (Kagai Jugyou) [English] [Sei-Jin] [Decensored]
(C71) [Ohtado (Oota Takeshi)] Naisho da yo! Mahou no Club Katsudou (Sasami Magical Girls Club)
(C88) [Nachtzug (eko)] Ofuro de Naisho (Kantai Collection -KanColle-) [Chinese] [哲学狗汉化组]
(C81) [CIRCLE ENERGY (Imaki Hitotose)] Sister Maria Sensei no Hachimitsu Jugyou (Boku wa Tomodachi ga Sukunai)
(C92) [Suteuka no Koya (Komone Ushio)] Watanabe You Sensei no Tokubetsu Jugyou (Love Live! Sunshine!!)
(C72) [C@T Slash (Kahama Youko)] Naisho no Jikan (Kodomo no Jikan)
[Anthology] H na Kanojo to Naisho no Shutter Chance [Digital]
[Konohana] Naisho no Jikan (COMIC Megastore 2009-04) [English] [AlphaYang]
Classmate to Ecchi Jugyou
[Irotsuki Sakari] Kanjiru Kagai Jugyou
Rean Kyoukan no Tokubetsu Kagai Jugyou
(COMIC1☆10) [Death Para (Tamaki Kurou)] Kitakami-san to Naisho no Naisho (Kantai Collection -KanColle-)
(Reitaisai 14) [Rocket Chousashitsu (Koza)] Kazami Yuuka to Naisho Play (Touhou Project)
[Keno Yantarou] Tadashii Kagai Jugyou [Chinese]
(Gakuen Trial 1.5 Kagai Jugyou) [ZCC (Zakiko)] Hi ga Kurete (Super Danganronpa 2) [English]
[Anagura (Usa)] Reika-san no Tokubetsu Jugyou (Smile Precure!) [Digital]
(C80) [milkberry (Kisaragi Miyu)] Minna ni wa Naisho da yo (Puella Magi Madoka Magica)
[Garakuta Shoujo (Miito Shido)] Kanojo wa Chou Yuumei Geinoujin... Soshite Boku ni Naisho de AV Joyuu Satomi-Satona Gojitsudan 2
Kawakami Sensei to Futaba no Himitsu Kojin Jugyou | Una lección privada y secreta con Futaba y Kawakami-sensei
(Sabaki no Niwa 21) [Ko9konnan (mov)] Naisho no Shimatsusho | 秘密的检讨书 (Gyakuten Saiban) [Chinese] [黑夜汉化组]
[Amatarou] Futari de Jugyou wo Nukedashite ♡ | Sneaking out of Class Together [English] {YQII}
[Hirose Miho] Himitsu no Kagai Jugyou
[Sasamori Tomoe] Yuutousei Ni Hitsuyou Na Jugyou (COMIC HOTMiLK 2014-05) [Chinese] [無毒気漢化組(無邪気X无毒)]
(C88) [Polinky Hiroba (Hori Hiroaki)] Kirari-Sensei no Hapi Hapi Jugyou (THE IDOLM@STER CINDERELLA GIRLS)
Tokubetsu Jugyou Shiyou! Kashima-chan!
Onna Kishi no Kagai Katsudou
[MULTIVITAMIN] Jugyou Sankan DL ban (Original)
(C74) [Naruho-dou (Naruhodo)] Sekaiichi Uketai Anko no Jugyou (Naruto) [Chinese]
(Sougetsusai 05) [Naisho No Usagi Koya (Tawawaringo)] Jaku Usagi Monogatari
[Dorachefu] Muchimuchi Kanojo no NTR Hoshuu Jugyou | NTR – Voluptuous Girlfriend's Supplementary Lesson (ANGEL Club 2018-07) [English] [seindryu] [Digital]
[Gyuunyuu Rinda] Minami Sensei no Tadashii Seikyouiku Jugyou
Youkoso Paisen ~AV Joyuu no Kagai Jugyou~ | Welcome graduate ~AV Actress's Extracurricular lesson~
Yuutousei ni Hitsuyou na Jugyou
Zerogumi Kagai Jugyou
Himitsu no Kagai Jugyou
(C88) [Decoppachi (Hidiri Rei)] Naisho no IV Satsuei-kai (THE IDOLM@STER MILLION LIVE!)
[Katsurai Yoshiaki] Amatsuka Gakuen no Kaikan Jugyou (COMIC X-EROS #37)
(C90) [H-SQUAD (Guglielmo)] Hokentaiiku Jisshuu Jugyou ~Onnanoko no Karada no Shikumi Hen~
(C62) [SimaSima System, Nagisawaya (Nagisawa You)] Sakura no Naisho Kawara Ban Sono 4 (Cardcaptor Sakura)
(C89) [16kenme (Sato-satoru)] Naisho no Love Situation (THE IDOLM@STER CINDERELLA GIRLS)
[Watanabe Wataru] Naisho ni Shite ne
[Studio Claim] Havayama niwa Naisho... (Urusei Yatsura)
[Morishima Kon] Naisho No Gohoushi (COMIC Tenma 2016-04) [Chinese] [漢化組漢化組]
[Oshii Rei] Kougyaku Jugyou [Digital]
[MARUTA] Boku to Kanojo no Hikakuteki Naisho no Nichijou [English] [CGrascal]
Classmate to Ecchi Jugyou Ch. 6
(Kouroumu 6) [04U (Misasagi Task)] Anoko nya Naisho (Touhou Project)
(C88) [Akuten Soushin (Kokutou Nikke)] Tenryuu Onee-chan to Naisho no Yasen Enshuu!! (Kantai Collection -KanColle-) [Chinese] [BW个人汉化]
[Tokunaga Poosaku] Himitsu no Kagai Jugyou
[botibotiikoka (takku)] Joji Bitch JS wa Yuuwaku Shitagariya-san - Inokori Jugyou [Digital]
(C85) [furuike (Sumiya)] Off no Kongou to Naisho no Ohanashi (Kantai Collection -KanColle-)
Classmate to Ecchi Jugyou Ch. 1
[Minor Boy] Keiko Sensei no Chijoku Jugyou
[Sakamata Nerimono] Sexual Fall (Megane Loli Choukyou Jugyou!! ~Otonashii Megane Lolikko ni Muriyari Dekachin Sounyuu~) [English] {Doujins.com}
[Tachibanaya] Megmica-san to Kagai Katsudou (Meg and Seron)
[Misao.] Minamo no Naisho | Minamo's Secret (Hajimete Janai yo?) [English] [Rin]
(CR25) [Studio Wallaby (Kokuden Kadotake, Niiruma Kenji, Deep Purple '72)] Purikura no Naisho (Princess Crown)
(C81) [TIES (Takei Ooki)] Kobato no Naisho. (Boku wa Tomodachi ga Sukunai) [Decensored]
Kagai Choukyou
[Iguchi Sentarou] Classmate to Ecchi Jugyou 1~3[Digital]
Kougyaku Jugyou
[ISOTONIX (Nixinamo:Lens)] Natsuki As You Like Naisho no Ura-Video
[Asahina Makoto] Naisho no Natsuyasumi Ch. 1-2
Hokentaiiku Jisshuu Jugyou ~Onnanoko no Karada no Shikumi Hen~
[Kukuya (ckj)] Naisho desu yo? Kald-san | It's a Secret Kald-san, You Hear? (Atelier Firis) [English] [Springborn]
Katei Kyoushi no Kagai Jugyou | The Home Tutor's Extracurricular Lesson
[Asahina Makoto] Naisho no Wareme Lesson
(C81) [Sukapon-Do (Kagawa Tomonobu, Yano Takumi)] Zerogumi Kagai Jugyou (Final Fantasy Type-0)
(C91) [CHARAN PORAN (Nekono Matatabi)] Naisho no Rehearsal (THE IDOLM@STER CINDERELLA GIRLS)
(C70) [ENERGYA (Russia no Dassouhei)] Asahina Mikuru-sensei no Tokubetsu Jugyou (Suzumiya Haruhi no Yuuutsu)
Tenshi no Houkago Jugyou Chapter 1
[Monogusa Wolf] Naisho no Telephone Date
[Garakuta Shoujo (Miito Shido)] Kanojo wa Chou Yuumei Geinoujin... Soshite Boku ni Naisho de AV Joyuu Satomi-Satona Gojitsudan 1
[sugarBt] Hajimete no Jugyou | First lesson (COMIC Koh 2016-09) [Chinese]
(C88) [Akuten Soushin (Kokutou Nikke)] Tenryuu Onee-chan to Naisho no Yasen Enshuu!! | A Secret Night Battle Practice With Big Sis Tenryuu!! (Kantai Collection -KanColle-) [English]
(SC31) [P-Forest (Hozumi Takashi)] Otome no Naisho Tomoe-chan to Iroiro... (Mai-Otome)
[Studio Wallaby (Various)] Sakura no Naisho (Cardcaptor Sakura)