(C68) [First Aid (Kagura Sakana)] Naisho no Satoko (Higurashi no Naku Koro ni)
Jugyou ni Kyousei Rape Time ga Dounyuu Saremashita ~ Suki na Ko wo Hame Houdai! Kyousei Hame Jikan Start!
Sensei to Himitsu no Jugyou | Secret Lessons with Sensei
Tenshi no Houkago Jugyou Chapter 3
[Guglielmo] Youkoso Paisen ~AV Joyuu no Kagai Jugyou~ | Welcome graduate ~AV Actress's Extracurricular lesson~ (Shishunki Marudashi!) [English] [Azzei]
[Asai Kikaku (Satou Masa)] Suki Suki! Bokura no Mucchiri Ona-Hole Sensei! Zenryoku Nakadashi Kojin Jugyou [Digital]
[Studio Wallaby (Kokuden Kadotake, Shijuukara, Leopard)] Shaorin no Naisho (Mamotte Shugogetten!)
(C88) [Nachtzug (eko)] Ofuro de Naisho (Kantai Collection -KanColle-)
(C90) [Solid Air (Zonda)] Oshiete! Kaga-sensei ~Hajimete no Niana Jugyou~ (Kantai Collection -KanColle-)
(C92) [Atelier Lunette (Mikuni Atsuko)] Naisho Nano! -Haruhara-ke Sanshimai Monogatari- 3 [English]
(C72) [Super Flat Lolinitron (Focke Wolf)] Karada no Naisho. (Asatte no Houkou.) [English] [Kamikakushi]
(C83) [Mama ni wa Naisho (Purukogi Beach)] Enshoku Niku Sakura - Coquettish Flesh Cherry (Dead or Alive)
Rika Sensei no Kagai Jugyou
[Torajima-shi Kouhouka (Torajimaneko)] Builder to Fighter no Naisho Banashi (Gundam Build Fighters) [Digital]
Tenshi no Kagai Jugyou Ch. 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]
[Inomoto Rikako] Naisho no Onnanoko
[Kitani Sai] Shitsuraku Aroma | Lost Aroma (Himitsu Jugyou) [English] {Fated Circle}
(CR31) [Studio Wallaby (Deep Purple '72)] Suu no Naisho!! -The secret of Su- (Vampiyan Kids)
(COMIC1☆8) [Nipopo Crisis (Genka Ichien)] Tanoshii Koto o Naisho ni Shiyou. Kanzenban (Zettai Muteki Raijin-Oh)
(C88) [brilliant thunder (Yumeno Tanuki, Fue)] Oya ni Naisho no Iedex
(C77) [Punipuni Doumei (Mizuki Gyokuran)] Naisho no Wankoro Mochi (Anyamaru Tantei Kiruminzoo)
[Tokunaga Poosaku] Himitsu no Kagai Jugyou
(SPARK8) [Yu-cho (Pal)] Otona niwa Naisho (Free!)
[Yuzu Ramune] Yankee Musume o Ecchi de Kousei!? ~Jugyou de Ijirare Shitagi ga Gusshori~ 2
Tenshi no Houkago Jugyou Chapter 10
Naisho no Kagai Jugyou Ouyou Hen
(SC32) [Tololinco (Tololi)] Markl to Sophie no Naisho no Ohanashi | Secret Story of Markl and Sophie (Howl's Moving Castle) [English] [Fated Circle]
(C81) [TIES (Takei Ooki)] Kobato no Naisho. (Boku wa Tomodachi ga Sukunai)
(Kouroumu 6) [04U (Misasagi Task)] Anoko nya Naisho (Touhou Project) [English] [CGrascal]
[Iguchi Sentarou] Classmate to Ecchi Jugyou 4~6[Digital]
[Dorachefu] Muchimuchi Kanojo no NTR Hoshuu Jugyou | NTR – Voluptuous Girlfriend's Supplementary Lesson (ANGEL Club 2018-07) [English] [seindryu] [Digital]
[Yamano Kitsune] Injoku Jugyou
(COMIC1☆7) [Aroma Gaeru (Numahana)] Hamon Kyoushi no Setekina Jugyou (JoJo's Bizarre Adventure) [English] {DesuDesu}
[Minor Boy] Keiko Sensei no Kagai Jugyou - Keiko Sensei Series 1
(C88) [nothingfades (Amane Nekoko)] Naisho no Hajimete Kouhen (PriPara)
[Garakuta Shoujo (Miito Shido)] Kanojo wa Chou Yuumei Geinoujin... Soshite Boku ni Naisho de AV Joyuu Satomi-Satona Gojitsudan 2
[Asahina Makoto] Naisho no Natsuyasumi Ch. 1-2
Sensei no ♥ Himitsu Jugyou
[Oomichi Imuta] Naisho ni Shite ne | Keep this a Secret, okay (Futanarikko High!) [English] [UsagiTrans]
[Higashimidou Hisagi] Momozono Gakuensei Kagaku Jugyou Houkago Fuck - After School Fuck
[Katsurai Yoshiaki] Kyou-sei Kagai Shidou | After School Obedience Coaching (COMIC Megastore 2010-02) [English] {doujin-moe.us}
Kagai Jugyou Sakuya Hen
[Garakuta Shoujo (Miito Shido)] Kanojo wa Chou Yuumei Geinoujin... Soshite Boku ni Naisho de AV Joyuu Satomi-Satona Gojitsudan 1 [Digital]
(HaruCC19) [Harench-noon (Inao Maasa)] Naisho Na Karada (DRAMAtical Murder)
(C89) [conezu step!+Ziggurat (Suzuki Akoni)] JK Yome Sakura no Kagai Jugyou [Chinese] [無邪気漢化組]
Tenshi no Houkago Jugyou Chapter 7
(SUPER13) [Aireal, Teruo Haruo (Fuka, Kanekiyo Miwa)] Kagai Jugyou - Extracurricular Lesson (Yu-Gi-Oh!)
Kagai Katsudou
(C65) [Naisho no Tsubomi (Unazuki Renge)] Naisho no Tsubomi (Various)
[Musenmai] Naisho (COMIC AUN 2017-01) [Chinese]
[Ameyama Telegraph (Ameyama Denshin)] Rokujou Junko no Haisetsu Kagai Jugyou [Digital]
[Ginto] Ure Niku Neburi Gakuenchou to Boku no Ero Hon Kagai Jugyou
[Natsume Benkei] Nichijou-teki ni Okaa-san ni Dasu Seikatsu - Otou-san ni Naisho no Nakadashi Ecchi Hen
(C70) [Dr.VERMILION (Riku, Kurasawa Makoto, Petenshi)] Youmu no Naisho! (Touhou Project)
[Hasemi box (Hasemi Ryo)] Futari to Shota no Naisho Graffiti (Koufuku Graffiti)
(C91) [Fujiya (Nectar)] Naisho na Shinomiya-san | 四宮同學的秘密 [Chinese] [夢之行蹤漢化組]
Inkou Kyoushi Dakkou Kakugo no Kakuchou Jugyou
[Noise] Tobibako no Jugyou (COMIC LO 2013-05 Vol.110) [English] [Facedesk]
Yomako-Sensei no Tokubetsu Jugyou
[Ohigetan] Chikan Gakushuu Shidou Youryou ~Shou 6 Gyaku Chikan Kagai Jugyou Hen~ (COMIC LO 2016-08) [English] [Striborg]
(C90) [Solid Air (Zonda)] Oshiete! Kaga-sensei ~Hajimete no Niana Jugyou~ (Kantai Collection -KanColle-) [Chinese] [空気系☆漢化]
(C80) [Shirakaba Doori (DRY)] Fuyuko Sensei no Hachimitsu Jugyou (Cerberus)
[Kuro Fn] Seiseki Up! Tokubetsu Kojin Jugyou no Himitsu (Pakorare Award) [Chinese] [Digital]
(C92) [666PROTECT (Jingrock)] Tenkousei JK Elf 3 -Houkago Yagai Jugyou- | High School Elven Transfer Student -After School Outdoor Lessons- [English] [Tremalkinger]
[Leafy] Mama ni Naisho no Hatsujouki
[Minor Boy] Keiko Sensei no Chijoku Jugyou
[Sangatsu Usagi] Naisho no Teatime - The Secret Teatime
[Oyama Yasunaga] Kahanshin Jugyou - Teaching About the Lower Half of the Body
[FEI] Sensei no ♥ Himitsu Jugyou Ch. 1-8
(Shotaket 11) [Studio Rakkyou (Various)] Tsubasa x4 no Naisho (Naisho no Yorimichi)
Keiko Sensei no Chijoku Jugyou - Keiko Sensei Series 4
Tobibako no Jugyou
(C91) [CHARAN PORAN (Nekono Matatabi)] Naisho no Rehearsal (THE IDOLM@STER CINDERELLA GIRLS) [English]
[Studio Wallaby (Deep Purple '72)] Licca no Naisho (Super Doll Licca-chan)
(C88) [brilliant thunder (Yumeno Tanuki)] Oya ni Naisho no Iedex
Houkago no Kojin Jugyou
[Haiiro Ookami] Jokyoushi no Roshutsu Jugyou
(COMIC1☆11) [KURUBUSI-KAI (Dowarukofu)] Mikan no Naisho no Houkago (To LOVE-Ru Darkness)
Riritama Hoshuu Jugyou! - Riritama Supplementary Lessons!
[Keno Yantarou] Tanoshii Kagai Jugyou - Happy Extracurricular Lesson [Chinese]
(COMIC1☆3) [Human High-Light Film (Shiosaba)] Naisho no Honey (Cutey Honey)
[Kuku ya (ckj)] Naisho desu yo? Kald-san (Firis no Atelier)
[Aigamodou (Ayakawa Riku)] Katori Sensei no Yasen Jugyou (Kantai Collection -KanColle-) [Digital]
[Unno Hotaru, Natsumi Chiharu, Yoshizawa Kei, Otohiko] Himitsu no Renai Jugyou 45
[Keno Yantarou] Hageshii Kagai Jugyou
(Panzer Vor! 11) [Nazunaya Honpo (7zu7)] Erika no Naisho. (Girls und Panzer)
(C59) [Chuuni+OUT OF SIGHT (Kim Chii)] Onee-chan to Naisho 01
[Hanpera] Katei Kyoushi no Kagai Jugyou | The Home Tutor's Extracurricular Lesson (Ane Chichi) [English] [ultimaflaral]
(C78) [Mama ni wa Naisho (Purukogi Beach)] Exquisite Chocolate (Dragon Quest IV)
[Maekawa Hayato] Onee-chan Sensei no Himitsu Jugyou [Chinese] [篆儀通文書坊漢化]
(C93) [Zabuton Makura (Nakai)] Anoko ni Naisho no Uchiawase (THE IDOLM@STER CINDERELLA GIRLS) [English]