(C81) [Sukapon-Do (Kagawa Tomonobu, Yano Takumi)] Zerogumi Kagai Jugyou (Final Fantasy Type-0)
Gaman Dekinai Kagai Jugyou
(C82) [THE FLYERS (Naruse Mamoru)] Ako-chan to Naisho no XX + plus (Saki Achiga-hen)
[Hasemi box (Hasemi Ryo)] Futari to Shota no Naisho Graffiti (Koufuku Graffiti)
[Rorerore-ya (Roreru)] Shoujo to Gozen Jugyou [Chinese] [輝夜漢化]
(C85) [Nipopo Crisis (Genka Ichien)] Tanoshii Koto o Naisho ni Shiyou. Yousumi Ban (Various)
[Matsumoto Katsuya] Naisho no Mio Sensei | The secret Mio sensei (COMIC Masyo 2017-02) [English] [desudesu] [Digital]
(CR31) [Studio Wallaby (Deep Purple '72)] Su no Naisho!! -The secret of Su- (Vampiyan Kids)
Girotin Konsoku Hoken no Jugyou
[Anzaki Moral] Kanbyou Shite Ageru | Sinful Nursing (Hanjuku Yawaana Jugyou) [English] [ugliblawg]
[Circle Roman Hikou (Taihei Tengoku)] Sekaiichi Uketai Kojin Jugyou (Quiz Magic Academy)
Classmate to Ecchi Jugyou Ch. 7
[Usi] Otto ni Naisho de Ajimi Shite Ch.1-7
[BOSS Chin] Naisho no Ota x Bitch (COMIC Shingeki 2012-10) [English] [desudesu] [Digital]
[FEI] Sensei no ♥ Himitsu Jugyou
[Goban] Okaasan no Seiteki na Jugyou (COMIC Momohime 2010-03) [Chinese] [sakaroko个人汉化]
[Yan-Yam (Yan-Yam)] Inkou Kagai Jugyou (Onegai Teacher)
[FEI] Sensei no ♥ Himitsu Jugyou Ch. 1-7
[Aimaitei (Aimaitei Umami)] Futanari Osananajimi to Ore to Hajimete no Gyaku Anal Kagai Jugyou | Me and My Futanari Childhood Friend's First Extracurricular Lesson in Reverse Anal [English] [JasmineTea] [Digital]
[Rokuichi] Ririn-san no Naisho no Kao to Daiji na Oheya (COMIC HOTMILK 2018-07) [Chinese] [無邪気漢化組] [Digital]
[Yamano Kitsune] Injoku Jugyou
[Nohri Isawa] Naisho no Kansatsu Nikki (Secret Observation Journal) [English] [Mistvern]
Keiko Sensei no Chijoku Jugyou - Keiko Sensei Series 4
[Keno Yantarou] Tanoshii Kagai Jugyou
[Kamiya Ogawa] Mama ni Naisho Mama to Naisho (COMIC Penguin Club Sanzokuban 2018-11) [Digital]
[Hasemi_box (Hasemi Ryo)] Futari to Shota no Naisho Graffiti (Koufuku Graffiti) [Chinese] [靴下漢化組] [Digital]
[Tokunaga Poosaku] Himitsu no Kagai Jugyou
(COMIC1☆5) [Shimoyakedou (Ouma Tokiichi)] Naisho no Mahou (Puella Magi Madoka Magica)
(C71) [Pyonpyororin (Akoko.)] Ano... Naisho ni shite kudasai ne? (Suzumiya Haruhi no Yuuutsu) [English]
[Kuro Fn] Seiseki Up! Tokubetsu Kojin Jugyou no Himitsu (Pakorare Award) [Chinese] [Digital]
(C94) [Kurumi Namiki (Mita Kurumi)] Atago-san to Naisho no Ecchi (Kantai Collection -KanColle-)
(COMIC1☆7) [Aroma Gaeru (Numahana)] Hamon Kyoushi no Setekina Jugyou (JoJo's Bizarre Adventure)
[Oshii Rei] Kougyaku Jugyou
[blue killer (Doku Denpa)] Naisho no Yodare Sex [Digital]
(C91) [Fujiya (Nectar)] Naisho na Shinomiya-san
(C71) [Ohtado (Oota Takeshi)] Naisho da yo! Mahou no Club Katsudou (Sasami Magical Girls Club)
[774] Naisho no Hentai Sex
(C93) [J.D.World (Fumi Miyabi)] Onee-san ni wa Naisho ne (Kantai Collection -KanColle-) [Chinese] [无毒汉化组]
(Puniket 23) [Suitekiya (Suitekiya Yuumin)] Naisho no HONya-san (Watashi no Ouchi wa HONya-san)
Dennou Sekai ni Torawarete ~Onna Avatar de Seihoushi Jugyou, Uketemasu~
(CINDERELLA FESTIV@L) [Aozora Shoujo (Shirane Taito)] Naisho no Gao Gao Ecchi (THE IDOLM@STER CINDERELLA GIRLS)
[Hanpera] Katei Kyoushi no Kagai Jugyou | The Home Tutor's Extracurricular Lesson (Ane Chichi) [English] [ultimaflaral]
[Nyoroman Shouji] Mucchimuchi Keiko Sensei no Chou Nikkan Dohentai Jugyou! "Muchimuchi Roshutsu Choukyou Aheahe Chigoku Hen" (Kekko Kamen)
Kirari-Sensei no Hapi Hapi Jugyou
(CR31) [Studio Wallaby (Deep Purple '72)] Suu no Naisho!! -The secret of Su- (Vampiyan Kids)
[Asahina Makoto] Naisho no Wareme Lesson
Naisho no Kagai Jugyou Nyuumonhen
(CINDERELLA FESTIV@L) [Aozora Shoujo (Shirane Taito)] Naisho no Gao Gao Ecchi (THE IDOLM@STER CINDERELLA GIRLS) [English]
(COMIC1☆8) [TriaL3 (Various)] Naisho no Imouto Ecchi
(CR35) [Chokudoukan (Hormone Koijirou, Marcy Dog)] Ink Sensei no Ikenai Kagai Jugyou - Teacher Ink's an Extracurricular Erotic Lecture (Moetan)
(C94) [Service Heaven (Azukiko)] Kawakami Sensei to Futaba no Himitsu Kojin Jugyou (Persona 5)
(C86) [Go-Go-Merry-Go-Round (Kasai Ema)] Naisho no Natsuyasumi. (Neon Genesis Evangelion) [English] [CGrascal]
Classmate to Ecchi Jugyou Ch. 6