(SC33) [Human High-Light Film (Shiosaba)] Honey no Naisho 3 (Cutey Honey)
(C73) [Samurai Ikka (Kureyon)] Yomako Sensei no Yuuwaku Jugyou (Tengen Toppa Gurren Lagann)
(C85) [Majimadou (Matou)] Enoshima Sensei no Chou Zetsubouteki Zecchou Jugyou (Danganronpa) [English] {Less Censored Version}
[Tokunaga Poosaku] Himitsu no Kagai Jugyou
[Muchiuchi (Muchi)] Naisho no Hero | Secret Hero (Osomatsu-san) [English]
[Melancolic Hyodo] Hoken no Tokubetsu Jugyou
(C86) [Mama ni wa Naisho (Plasma Beach)] Kinniku Chocolate (Samurai Spirits)
(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]
[Tawara Hiryuu] Kanojo ni Naisho de (COMIC Tenma 2015-03) [Chinese] [黑条汉化]
Sekaiichi Uketai Anko no Jugyou
[Katsurai Yoshiaki] Amatsuka Gakuen no Kaikan Jugyou (COMIC X-EROS #37)
(C78) [Mama ni wa Naisho (Purukogi Beach)] Exquisite Chocolate (Dragon Quest IV)
[Keno Yantarou] Tanoshii Kagai Jugyou - Happy Extracurricular Lesson [Chinese]
[Yuzu Ramune] Yankee Musume o Ecchi de Kousei!? ~Jugyou de Ijirare Shitagi ga Gusshori~ 2
(C92) [Suteuka no Koya (Komone Ushio)] Watanabe You Sensei no Tokubetsu Jugyou (Love Live! Sunshine!!) [Chinese] [寂月汉化组]
[Maruta] Boku to Kanojo no Hikakuteki Naisho no Nichijou Chapter 1 (English)
[Abe Inori] Ninshin Inokori Jugyou (ANGEL Club 2016-09) [English] [xinsu] [Digital]
[Kitani Sai] Himitsu Jugyou
(Shotaket 11) [Studio Rakkyou (Various)] Tsubasa x4 no Naisho (Naisho no Yorimichi)
[Hard Chrome (hardcrom)] Naisho no Step (THE IDOLM@STER CINDERELLA GIRLS)
(C90) [Brilliant Thunder (Yumeno Tanuki)] Oya ni Naisho no Umi no Iedex
(C88) [MAPLER (Maple)] Tomodachi ni mo Naisho no Koto
Secret lesson - Himitsu Jugyou
Kawakami Sensei to Futaba no Himitsu Kojin Jugyou | Una lección privada y secreta con Futaba y Kawakami-sensei
(C90) [ERROR404 (Nikaido Kai)] Naisho ni shite ne (Touken Ranbu)
[Light Pink] YES! Yes! Kagai Katsudou 2 (Yes! Precure 5)
Tenkousei JK Elf 3 Saishuushou -Houkago Yagai Jugyou-
(COMIC1☆4) [Human High-Light Film (Shiosaba!)] Naisho no Makinami (Rebuild of Evangelion) [English]
Tenshi no Kagai Jugyou Ch. 9
(C92) [megalodon (Mezashi Gohan)] Albion Gakuen Himitsu no Jugyou (Granblue Fantasy)
[Torajima-shi Kouhouka (Torajimaneko)] Builder to Fighter no Naisho Banashi (Gundam Build Fighters) [English] {Shotachan} [Digital]
[Saeki Takao] Asa Made Kojin Jugyou
[Kukuya (ckj)] Naisho desu yo? Kald-san | It's a Secret Kald-san, You Hear? (Atelier Firis) [English] [Springborn]
(SUPER24) [Rolling box (Kanaru Tabito, Shiina Akira)] Kyosuke ni wa Naisho (THE IDOLM@STER SideM)
(C89) [brilliant thunder (Yumeno Tanuki)] Oya ni Naisho no Iedex - Toshikoshi-hen [Chinese] [肥宅除夕依舊只能看著衛生紙上的殘渣翻譯]
On'na kishi no kagai katsudō sample
Classmate to Ecchi Jugyou Ch. 6
(C82) [Natsu no Umi (Natsumi Akira)] Mama ni wa Naisho no XXX (Smile PreCure!)
[SAS] Kagai Jugyou ni Youkoso!(COMIC Penguin Club Sanzokuban 2011-12)
[Minamida Usuke] Dokidoki Hoshuu Jugyou (COMIC Megastore Alpha 2016-04) [Chinese] [黑条汉化]
(C76) [7 Men Zippo (Kamishima Akira)] Hokenshitsu de Jugyou Chu! | Class in the Nurse's Office! (Katekyo Hitman REBORN!) [English] [Lady Phantomhive]
JK Yome Sakura no Yagai Jugyou
Rika Sensei no Kagai Jugyou | Rika Sensei's Extracurricular Lesson
[Hirose Miho] Himitsu no Kagai Jugyou
(SUPER23) [Dogfes (sio)] Kagai Jugyou (Ansatsu Kyoushitsu)
[Higashimidou Hisagi] Momozono Gakuensei Kagaku Jugyou Houkago Fuck - After School Fuck [English] {doujins.com}
Joshi-kou de Sex Jugyou ~ Sensei, Ichigenme kara Irenaide!
Kichiku-sensei no Kagai Jugyou
(SUPER23) [Dogfes (sio)] Kagai Jugyou (Ansatsu Kyoushitsu)
(C85) [Tooku no Sora (UTAKATA Nagi)] Musashi-san no Kojin Jugyou (Kyoukai Senjou no Horizon)
(COMIC1☆5) [Shimoyakedou (Ouma Tokiichi)] Naisho no Mahou (Puella Magi Madoka Magica)
Ottori Kyoushi no Nettori Jugyou
(C91) [Fujiya (Nectar)] Naisho na Shinomiya-san | 四宮同學的秘密 [Chinese] [夢之行蹤漢化組]
[ACTIVA (SMAC)] Yomako-sensei no Tokubetsu Jugyou (Tengen Toppa Gurren Lagann)
(C88) [THE FLYERS (Naruse Mamoru)] Maekawa-san to Naisho no XX (THE IDOLM@STER CINDERELLA GIRLS)
(C88) [Sweet Candle (Sakuraizumi Yuu)] Naisho no Asobi (THE iDOLM@STER CINDERELLA GIRLS)
(COMIC1☆7) [CARAMEL CRUNCH! (Rikatan)] Naisho no Houkago Idol (Love Live!)
(COMIC1☆9) [Atelier Lunette (Mikuni Atsuko)] Naisho Nano! -Haruhara-ke Sanshimai Monogatari- 2 [English]
(C90) [Raijinkai (Haruki Genia)] Naisho no Kagai Jugyou (NEW HORIZON) [Chinese] [CE家族社]
[Circle Ohigetan (Ohigetan)] Ohigebon-32 Classmate Manko Note 7-kame Joukan Taiiku no Jugyou no Ato Classmate no Onnanoko-tachi ni Onnanoko ya Ase no Nioi de Munmun Muremure no Joshi Kouishitsu e Shoutai Saremashita [English] {N04h}
(C81) [TIES (Takei Ooki)] Kobato no Naisho. (Boku wa Tomodachi ga Sukunai) [English] [QB Translations] [Decensored]
[Usi] Otto ni Naisho de Ajimi Shite Ch.1-7
[Yanagi] Oshioki Kojin Jugyou (COMIC ExE 02) [Chinese] [今天又是懶覺懶覺的巨篇]
(C93) [ParadiseGom (Gorgonzola)] Naisho no Ohime-sama (Dragon Quest XI)
(C80) [Avion Village F (Fechi)] Kamishirasawa Keine no Dosukebe Kojin Jugyou (Touhou Project)
(C88) [PINK CHUCHU (Mikeou)] Naisho no Shintai Sokutei (Gochuumon wa Usagi desu ka?) [Chinese] [脸肿汉化组]
[Alde Hyde] Ottori Kyoushi no Nettori Jugyou (ANGEL Club 2012-04) [Chinese] [cqxl自己汉化] [Digital]
(C88) [Crybaby Method (Hissui)] Kawaii Kawaii Lulu-chan no Choppiri H de Naisho na Himitsu (League of Legends)
(SC36) [from SCRATCH (Johnny)] SECRET LESSON ~Nanoha-sensei no Tokubetsu Jugyou~ (Mahou Shoujo Lyrical Nanoha) [Digital]
[Ookami Uo] (Ryuushutsu) JSJC Naisho no Jian
[sugarBt] Hajimete no Jugyou | First lesson (COMIC Koh 2016-09) [Chinese]
[Anzaki Moral] Kanbyou Shite Ageru | Sinful Nursing (Hanjuku Yawaana Jugyou) [English] [ugliblawg]
(C71) [Ohtado (Oota Takeshi)] Naisho da yo! Mahou no Club Katsudou (Sasami Magical Girls Club)
(Bokura no Love Live! 17) [Doku Tonkotsu Niku Dorei (Tanohito)] Chika-chan ni mo Naisho no Himitsu (Love Live! Sunshine!!)
(C90) [Kaminari-neko (Eitarou)] Miho to Anzu no Naisho no Himegoto (Girls und Panzer) [English] [/u/ scanlations]
[Sankuro] Himitsu no Jugyou Sankan | Secret of the Classroom Visit (COMIC LO 2011-01) [English] [Mistvern]
(COMIC1☆8) [Atelier Lunette (Mikuni Atsuko)] Naisho Nano! -Haruhara-ke San Shimai Monogatari-
[Okosama Lunch (Nishinozawa Kaorisuke, Hirayan)] Okosama Lunch Kagai Jugyou Light
[Shunjou Shuusuke] Naisho no Jouji | Secret Affair (Osaekirenai kono Kimochi) [English] {doujin-moe.us}
(C89) [conezu step!+Ziggurat (Suzuki Akoni)] JK Yome Sakura no Kagai Jugyou [English] [H-Konbini]
[Mori Hiromi] Onee-san no Kagai Jugyou
[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]
(C91) [conezu step!+Ziggurat (Suzuki Akoni)] JK Yome Sakura no Inokori Jugyou [English] [H-Konbini]
[Fuusen Club] Okaa-san wa DeliHeal-jou ~Musuko no Doukyuusei to Naisho de Tanetsuke SEX~ [Digital]
(Reitaisai 14) [Rocket Chousashitsu (Koza)] Kazami Yuuka to Naisho Play (Touhou Project) [Chinese]
(C56) [Studio Wallaby (Deep Purple '72, Meguro Sankichi)] Jubei-chan no Naisho (Jubei-chan)
(Shota Scratch 31) [Koneko no Marionette (Kuonji Shutaka, Poron, Namao)] Naisho no Otogibanashi 2 [English] {Shotachan}
[Studio Wallaby (Various)] Vitamin-B5 1/4 Ruri Ruri Naisho no Maid Nikki (Martian Successor Nadesico)
[Sasahara Yuuki] Naisho no Happyoukai. - A Secret Recital
(Kouroumu 6) [04U (Misasagi Task)] Anoko nya Naisho (Touhou Project) [English] [CGrascal]