Sekaiichi Uketai Anko no Jugyou
[SHINING (Shaian)] Akari Yami Jugyou (Jewelpet Twinkle) [Digital]
[Kiki] Inran Jugyou
(SC2017 Summer) [mocomocodo (Nukunuku Batten)] Glenn Sensei no Rokudenashi Kagai Jugyou (Rokudenashi Majutsu Koushi to Akashic Records)
(C88) [MAPLER (Maple)] Tomodachi ni mo Naisho no Koto
(C85) [Ishikawa Pro (Ishikawa Naoya)] Kuttsukiboshi -Naisho no Oshigoto- | -Secret Work- (Kuttsukiboshi) [English] {Hikikomori Honyaku}
[Yuzuponz (Kikira)] Inumimi Seikatsu ~Hatsujouki no Itoko Namahame Tokubetsu Jugyou~ [English] {JUSTICE} [Digital]
[XX-ya tte koto wa Naisho da. (Naisho da.)] Doremi-sama Doremi-sama Doremi-sama (Ojamajo Doremi)
(CR35) [Chokudoukan (Hormone Koijirou, Marcy Dog)] Ink Sensei no Ikenai Kagai Jugyou - Teacher Ink's an Extracurricular Erotic Lecture (Moetan)
(Kouroumu 6) [04U (Misasagi Task)] Anoko nya Naisho (Touhou Project)
[Konohana] Naisho no Jikan (COMIC Megastore 2009-04) [Chinese]
(Shota Scratch 25) [Yabure Kabure (Agemon)] Ogibo-san niwa Naisho desu. (Fullmetal Alchemist)
[Kawamura Tsukasa] Naisho ni Shitai Juu no Monogatari [Digital]
(C65) [Naisho no Tsubomi (Unazuki Renge)] Naisho no Tsubomi (Various)
(C88) [Decoppachi (Hidiri Rei)] Naisho no IV Satsueikai (THE IDOLM@STER MILLION LIVE!) [Chinese] [MISO个人汉化]
[Sukiyoshi Shinji] Monmon Kagai Jugyou (Incubus) [English] [mysterymeat3]
(C90) [Brilliant Thunder (Yumeno Tanuki)] Oya ni Naisho no Umi no Iedex [Chinese] [偷偷看著海邊亂交趴後在太平洋上射了殘渣翻譯]
[Tridisaster (Saida Kazuaki)] Class no Minna ni wa Naisho Dayo! (Puella Magi Madoka Magica) [Digital]
[Kamiya Ogawa] Mama ni Naisho Mama to Naisho (COMIC Penguin Club Sanzokuban 2018-11) [Digital]
[Anthology] H na Kanojo to Naisho no Shutter Chance [Digital]
(C85) [Majimadou (Matou)] Enoshima Sensei no Chou Zetsubouteki Zecchou Jugyou (Danganronpa) [English] {Less Censored Version}
(Futaket 4) [Domestic animals (Murasame Maru)] Yan-sensei no Tokubetsu Jugyou [English] =SW & Ero Manga Girls=
[Fireball Products] Seki Sensei No Kagai Jisshuu
[fourthcape (Misaki Takahiro)] Sena to Naisho no Houkago (Boku wa Tomodachi ga Sukunai) [Digital]
(C89) [EX35 (Kamaboko RED)] Minna ni naisho no setting! (Bakusou Kyoudai Let's and Go!!)
Sabotte Hamatte Hoshuu Jugyou | 偷懶♡上癮♡補習課程
[Hasemi_box (Hasemi Ryo)] Futari to Shota no Naisho Graffiti (Koufuku Graffiti) [Chinese] [靴下漢化組] [Digital]
(C91) [Fujiya (Nectar)] Naisho na Shinomiya-san
[Syuuen] Delivery love (Kagai Jugyou) [English] [Sei-Jin]
[Aichi Shiho] Okaa-san ni wa Naisho (Otokonoko HEAVEN Vol. 25 DMM Tokubetsu Ban) [Chinese] [瑞树汉化组] [Digital]
[Rafumioshi Goku Hyoe] Yume no Natsugai Jugyou
(C84) [ROMEO DASH (Kitto Shibaru)] Naisho desuyo, Reimu-san! (Touhou Project)
[Anthology] Megane Loli Choukyou Jugyou!! ~Otonashii Megane Lolikko ni Muriyari Dekachin Sounyuu~ | The Loli In Glasses' Training Lesson!! ~Force Fucking a Timid Glasses Wearing Loli With My Big Cock~ Ch. 1-3 [English] {Doujins.com}
Mama ni Naisho Mama to Naisho
(SUPER23) [Strawberry (Ichigo)] Tousan ni wa Naisho ni Shitete (Shingeki no Kyojin)
[Horihone Saizou] Naisho-Yoo
[Morishima Kon] Naisho no Gohoushi + Bangaihen (Oneshota Dish) [English] {Hennojin}
(SC2017 Winter) [TwinBox (Hanahanamaki, Sousouman)] Kouen no Naisho na Koto (Kantai Collection -KanColle-)
[Kuronisiki (Takaharu)] Onee-sama-tachi niwa Naisho de Senkan ni Narimasu (Kantai Collection -KanColle-) [Chinese] [koolo個人漢化] [Digital]
[Noise] Tobibako no Jugyou (COMIC LO 2013-05 Vol.110) [English] [Facedesk]
[Kitani Sai] Himitsu Jugyou
(C91) [CHARAN PORAN (Nekono Matatabi)] Naisho no Rehearsal (THE IDOLM@STER CINDERELLA GIRLS) [English]
[Misao.] Minamo no Naisho | Minamo's Secret (Hajimete Janai yo?) [English] [Rin]
(COMIC1☆7) [Aroma Gaeru (Numahana)] Hamon Kyoushi no Setekina Jugyou (JoJo's Bizarre Adventure) [Chinese] [瓜皮汉化]
(C88) [Crybaby Method (Hissui)] Kawaii Kawaii Lulu-chan no Choppiri H de Naisho na Himitsu (League of Legends)
[Oyama Yasunaga] Kahanshin Jugyou - Teaching About the Lower Half of the Body
[Studio Wallaby (Kokuden Kadotake, Shijuukara, Leopard)] Shaorin no Naisho (Mamotte Shugogetten!)
Kawakami Sensei to Futaba no Himitsu Kojin Jugyou
[Takase Yuu] Naisho no Jiyuuchou
[Musashimaru] Touzen, Imouto ni wa Naisho de
[MARUTA] Boku to Kanojo no Hikakuteki Naisho no Nichijou [English] [CGrascal]
[Human High-Light Film (Nise Tsuruta Hirohisa)] Honey no Naisho (Cutey Honey)
Secret lesson - Himitsu Jugyou
[Root 12-hedron (Landolt Tamaki)] Zutto Naisho ni Shiteta kedo, Jitsu wa Watashi, Haeteru no. | I've always kept this a secret, but the truth is, I have one [English] [UsagiTrans] [Digital]
Classmate to Ecchi Jugyou
(CCTokyo132) [Kitei (Naoki)] Naisho Banashi (Kuroko no Basuke)
(Shota Scratch 25) [Yabure Kabure (Agemon)] Ogibo-san niwa Naisho desu. (Fullmetal Alchemist) [English] {Shotachan}
Kyou mo Mata Katei Kyoushi ga Kite Kyousei Mesu Ochi Saimin Jugyou o Suru Hi
(C88) [THE FLYERS (Naruse Mamoru)] Maekawa-san to Naisho no XX (THE IDOLM@STER CINDERELLA GIRLS)
(Bokura no Love Live! 17) [Doku Tonkotsu Niku Dorei (Tanohito)] Chika-chan ni mo Naisho no Himitsu (Love Live! Sunshine!!)
[Majo Saiban (Mion_orz)] Naisho no Omajinai [Digital]
[Kitani Sai] Shitsuraku Aroma | Lost Aroma (Himitsu Jugyou) [English] {Fated Circle}
[Human High-Light Film (Nise Tsuruta Hirohisa)] Honey no Naisho 2 (Cutey Honey)
(SC36) [Lezmoe! (Oyu no Kaori)] Zettai Naisho! Himitsu no Otomari nano (Mahou Shoujo Lyrical Nanoha StrikerS)
(C89) [conezu step!+Ziggurat (Suzuki Akoni)] JK Yome Sakura no Kagai Jugyou [Chinese] [無邪気漢化組]
(C90) [conezu step!+Ziggurat (Suzuki Akoni)] JK Yome Sakura no Yagai Jugyou [Chinese] [無邪気漢化組]
[Iguchi Sentarou] Classmate to Ecchi Jugyou Ch.2 [Chinese]
Hokenshitsu de Jugyou Chu! | Class in the Nurse's Office!
[MoonRevenge (Miyuma Subaru)] Futari no Naisho
[Kawady MAX] Rinkan Jugyou (Rape Class) [English] =Torwyn=
(Puniket 12) [Soul Magic (Sudoo Kaoru)] Suki suki Aiko-chan Mayonaka no naisho (Ojamajo Doremi)
(C71) [Ohtado (Oota Takeshi)] Naisho da yo! Mahou no Club Katsudou (Sasami Magical Girls Club)
[Studio Wallaby (Various)] Sakura no Naisho (Cardcaptor Sakura)
(C73) [SUTE☆POTE (Kagura Soushi)] riri tama hoshuu jugyou! | Riritama Supplementary Lessons (Mahou Shoujo Lyrical Nanoha) [English]
[Murasame Maru] Ninpara ~Botehara XXgakusei no Tokubetsu Jugyou~ | Ninpara ~Preggo Elementary Schooler's Special Lession~ [English] [ATF]
[Sirotateto] Naisho no Orusuban [Digital]
[Inomoto Rikako] Naisho no Onnanoko
[Junk Center Kameyoko Bldg] Okaa-san ga Naisho de Hikikomori Musuko no Seishori no Aite o Shiteiru Hanashi.