(C79) [Human High-light Film (Shiosaba)] Naisho no Ayanami (Neon Genesis Evangelion) [English] [CGrascal]
[Jackpot 64 (HAN)] Alicia-mama to Naisho Ecchi Suru Hon (Granblue Fantasy) [Digital]
Yuutousei ni Hitsuyou na Jugyou | A Class an Honor Student Needs
(C85) [Majimadou (Matou)] Enoshima-sensei no Chou Zetsubou-teki Zecchou Jugyou + Futaket Paper (Danganronpa) [English] [N04H]
Minato-sensei no Kagai Jugyou
[Sakamata Nerimono] Naisho no Ofuro Ya San | Secret Bathhouse-san (Digital Puni Pedo! Vol. 07) [English] [ninjastik]
Naisho no Kagai Jugyou Nyuumonhen
[Yukan high Zakura (Chieko)] Shashin-bu Kounai Roshutsu Satsueikai - Bijutsu Jugyou Dessin Model 2 [Digital]
[Kitani Sai] Himitsu Jugyou
(COMIC1☆8) [Atelier Lunette (Mikuni Atsuko)] Naisho Nano! -Haruhara-ke San Shimai Monogatari- [English]
(C91) [Utaneya (Shion)] Naisho no Djeeta Onee-chan (Granblue Fantasy)
[Musashimaru] Touzen, Imouto ni wa Naisho de [Digital]
※Hoshuu Jugyou desu.
[Babymaker (Beco)] Naisho no Kozukuri 2 | Secret Lovechild 2 [English] [MintVoid]
[Phantom] Tsuya Ane ~Onee-san no Micchaku Jugyou~ [Chinese]
Yanagida-sensei no Zenra Jugyou
[Hiyashi Asia (Agurecchi)] Lunasa Onee-chan no Naisho no Bansoukai (Touhou Project) [Digital]
(Houraigekisen! Yo-i! 14Senme) [Testa Kitchen (Testa)] Onee-sama-tachi ni wa Naisho! (Kantai Collection -KanColle-)
[Majo Saiban (Mion_orz)] Naisho no Omajinai [Digital]
(C74) [Naruho-dou (Naruhodo)] Sekai Ichi Uke Tai Anko no Jugyou (Naruto) [English] {doujin-moe.com}
[Musashimaru] Touzen Imouto ni wa Naisho de | Keep It A Secret From My Sister Of Course [English]
[Usi] Otto ni Naisho de Ajimi Shite 1
Joshi-kou de Sex Jugyou ~ Sensei, Ichigenme kara Irenaide!
[botibotiikoka (takku)] Joji Bitch JS wa Yuuwaku Shitagariya-san - Inokori Jugyou [Digital]
(C88) [MAPLER (Maple)] Tomodachi ni mo Naisho no Koto
(C54) [Studio Wallaby (Various)] VITAMIN-B5 1/2 Ruri Ruri Naisho no Arbeit Nikki (Martian Successor Nadesico)
Tanoshii Kagai Jugyou | 즐거운 과외수업
[Watanabe Wataru] Naisho ni Shite ne | Make it secret (English)
Classmate to Ecchi Jugyou Ch. 1
Naisho no Kagai Jugyou Ouyou Hen
(CT5) [Transistor Baby (Hata)] Sensei to Himitsu no Kagai Jugyou (Summon Night 3)
(C91) [conezu step!+Ziggurat (Suzuki Akoni)] JK Yome Sakura no Inokori Jugyou [English] [H-Konbini]
[Shouji Ayumu] Naisho desu yo | It's a secret! (Chiccha-na Onaka) [English] [Rin]
[Katsurai Yoshiaki] Amatsuka Gakuen no Kaikan Jugyou (COMIC X-EROS #37)
(SUPER24) [Rolling box (Kanaru Tabito, Shiina Akira)] Kyosuke ni wa Naisho (THE IDOLM@STER SideM)
(CR26) [Studio Wallaby (Jacky Knee de Ukashite Punch x2 Summer de GO!, Kokuden Kadotake, Seishinja)] Tifa no Naisho (Final Fantasy VII)
[Marneko] Onnanoko Supple ~Seitenkan Shite Hoken no Jugyou~ | 女孩子補給品 性轉換之後保健的授業 [Chinese]
(C91) [Fujiya (Nectar)] Naisho na Shinomiya-san | 四宮同學的秘密 [Chinese] [夢之行蹤漢化組]
Tenshi no Kagai Jugyou Ch. 4
[Hasemi box (Hasemi Ryo)] Futari to Shota no Naisho Graffiti (Koufuku Graffiti)
(SC24) [Naisho No Usagi Koya (Usakun)] Gohoubi Suimingu
(C90) [ERROR404 (Nikaido Kai)] Naisho ni shite ne (Touken Ranbu)
[Higashimidou Hisagi] Momozono Gakuensei Kagaku Jugyou Houkago Fuck - After School Fuck [English] {doujins.com}
Taiiku no Inokori Jugyou
[Murasame Maru] Ninpara ~Botehara XXgakusei no Tokubetsu Jugyou~
(C62) [Studio Wallaby (Deep Purple '72)] Naisho no Azumanga (Azumanga Daioh)
[Fuusen Club] Naisho no Ehon
[Naisho (Mirai Shounen)] Jouyoku manin densha ★ Sensei... Okashite... (Full color version)
[Ponsuke] Naisho no Massage (COMIC LO 2016-03) [Chinese] [想抱雷妈汉化组] [Digital]
Classmate to Ecchi Jugyou 8
[Tamagoro] Boku to Oneesan no Naisho (COMIC Penguin Club Sanzokuban 2014-07) [English] [vaasi]
[Kitakata Kuniaki] Himitsu no Keijiban H na Onna no Naisho Banashi [English] {Coff66 & Funeral of Smiles}
[Pin-13 (Juusangatsu)] Futari no Naisho (Kizuato) [Digital]
(COMIC1☆7) [Aroma Gaeru (Numahana)] Hamon Kyoushi no Setekina Jugyou | Sexual Lessons of the Ripple Teacher (JoJo's Bizarre Adventure) [English] {doujin-moe.us}
(C72) [Super Flat Lolinitron (Focke Wolf)] Karada no Naisho. (Asatte no Houkou.)
[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. 1-4 [English] {Doujins.com}
[Horitomo] Lamia no Tokubetsu Jugyou (Kininaru Anoko wa Monster Musume) [Chinese] [CE家族社]
(C91) [Brilliant Thunder (Yumeno Tanuki)] Oya ni Naisho no Iedex - Fuyuyasumi no Toode Hen
(C90) [Death Para (Tamaki Kurou)] Kitakami-san to Ooicchi Naisho no Naisho (Kantai Collection -KanColle-)
Kimi to Himitsu no Jugyou
Tenkousei JK Elf 3 Saishuushou -Houkago Yagai Jugyou-
[Iguchi Sentarou] Classmate to Ecchi Jugyou 1~3[Digital]
[Sisei Tokei] Kojin Jugyou -Kokuhaku- (COMIC MILF 2012-12 Vol. 10) [English] [jhenier13]
[Studio Wallaby (Various)] Vitamin-B5 1/4 Ruri Ruri Naisho no Maid Nikki (Martian Successor Nadesico)
[774] Naisho no Hentai Sex
[Phantom] Tsuya Ane ~Onee-san no Micchaku Jugyou~ [Digital]
(C91) [moriQ (Mori Airi)] Rem to Naisho na Koto Shimasen ka? (Re:Zero kara Hajimeru Isekai Seikatsu)
[Sakura Puchilo] Naisho no Hokenshitsu (Otokonoko Heaven's Door 1) [Chinese] [瑞树汉化]
(C73) [Omoshiro Burger (Tokuda Shinnosuke)] Watashi-tachi to Papa no Kagai Jugyou Album
[Keno Yantarou] Owaranai Kagai Jugyou
[Ameyama Telegraph (Ameyama Denshin)] Rokujou Junko no Haisetsu Kagai Jugyou [Digital]
Kawakami Sensei to Futaba no Himitsu Kojin Jugyou
(C93) [Zabuton Makura (Nakai)] Anoko ni Naisho no Uchiawase (THE IDOLM@STER CINDERELLA GIRLS) [English]
(C87) [NextPreview (MIA)] Sugoku ViVid na Seikyouiku Jugyou (Mahou Shoujo Lyrical Nanoha)
(SC31) [P-Forest (Hozumi Takashi)] Otome no Naisho Tomoe-chan to Iroiro... (Mai-Otome)
[Hasemi_box (Hasemi Ryo)] Futari to Shota no Naisho Graffiti (Koufuku Graffiti) [Chinese] [靴下漢化組] [Digital]
[Minor Boy] Keiko Sensei no Kagai Jugyou - Keiko Sensei Series 1
[Monogusa Wolf] Naisho no Telephone Date
(C89) [Jagabata (Oimo)] Naisho no Futarikiri (PriPara) [English] {/u/ scanlations}
[Studio Wallaby (Deep Purple '72)] Licca no Naisho (Super Doll Licca-chan)
[TIES (Takei Ooki)] Mahou Shoujo no Naisho no Oshigoto (Puella Magi Madoka Magica) [English]
Zenra de Suiei no Jugyou!! | Naked Swimming Class!!
(C82) [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
[Yamano Kitsune] Injoku Jugyou
(C89) [16kenme (Sato-satoru)] Naisho no Love Situation (THE IDOLM@STER CINDERELLA GIRLS)
[SeriharaZ] Campus x Foot
(SC2015 Autumn) [Ame Usagi (Amedamacon)] Naisho no Hokenshitsu (Gochuumon wa Usagi desu ka?)
[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~ [English] {Doujins.com}
[Usi] Otto ni Naisho de Ajimi Shite Ch.1-7
[Horihone Saizou] Naisho [ENG]
Sensei to Kozukuri LOVE Jugyou
[Kawady MAX] Rinkan Jugyou (Rape Class) [English] =Torwyn=
Keiko Sensei no Kagai Jugyou - Keiko Sensei Series 1
Kyou mo Mata Katei Kyoushi ga Kite Kyousei Mesu Ochi Saimin Jugyou o Suru Hi
[Babymaker (Beco)] Naisho no Kozukuri
Houkago no Kojin Jugyou
[Haiiro Ookami] Jokyoushi no Roshutsu Jugyou
[Iguchi Sentarou] Classmate to Ecchi Jugyou Ch.1 [Chinese]
(SUPER23) [Strawberry (Ichigo)] Tousan ni wa Naisho ni Shitete (Shingeki no Kyojin)
[FEI] Sensei no ♥ Himitsu Jugyou Ch. 1-7
(SC30) [P-Forest (Hozumi Takashi)] Otome no Naisho Nina-chan to iro iro... (Mai Otome)
(C74) [Naruho-dou (Naruhodo)] Sekaiichi Uketai Anko no Jugyou (Naruto) [English] [Colorized]
[FEI] Sensei no ♥ Himitsu Jugyou
(C56) [Studio Wallaby (Deep Purple '72, Meguro Sankichi)] Jubei-chan no Naisho (Jubei-chan)
[SAS] Kagai Jugyou ni Youkoso!(COMIC Penguin Club Sanzokuban 2011-12)
Hokenshitsu de Jugyou Chu! | Class in the Nurse's Office!
[Root 12-hedron (Landolt Tamaki)] Zutto Naisho ni Shiteta kedo, Jitsu wa Watashi, Haeteru no. [Digital]
(C85) [Mama ni wa Naisho (Plasma Beach)] Hoshokukei Joshi (GOD EATER)
[Ookami Uo] (Ryuushutsu) JSJC Naisho no Jian
[Yanagawa Rio] Naisho no Wonderland | Wonderland of Secrets (GoGo! Girls) [English] {5 a.m.}
(C85) [Majimadou (Matou)] Enoshima Sensei no Chou Zetsubouteki Zecchou Jugyou (Danganronpa) [Chinese] [沒有漢化]
[Goban] Iinchou no Kagai Jugyou | Class President's Extracurricular Lesson (Comic Megastore H 2012-05) [English] {numberkawshin} [Digital]
Kirari-Sensei no Hapi Hapi Jugyou
(C58) [Studio Wallaby (Deep Purple '72, Kaneko Toshiaki, Kura Oh)] Oukoku No Naisho (Puppet Princess of Marl's Kingdom)
(C79) [SHINING (Shaian)] Akari Yami Jugyou (Jewelpet Twinkle)
(C90) [Mama ni wa Naisho (Plasma Beach)] Kinniku Bokujou (THE IDOLM@STER)
[Oozora Kaiko (Kaiko)] Papa ni wa Naisho no Boshi no Fureai [English] {forbiddenfetish77/cocblockula}
[Studio Claim] Havayama niwa Naisho... (Urusei Yatsura)
(C84) [ROMEO DASH (Kitto Shibaru)] Naisho desuyo, Reimu-san! (Touhou Project)
(C89) [EX35 (Kamaboko RED)] Minna ni Naisho no Setting! (Bakusou Kyoudai Let's & Go!!)
(COMIC1☆6) [Mama ni wa Naisho (Purukogi Beach)] Tetsu Momo MANEATER (Tekken)
(COMIC1☆7) [Aroma Gaeru (Numahana)] Hamon Kyoushi no Setekina Jugyou (JoJo's Bizarre Adventure) [Chinese] [瓜皮汉化]
(CINDERELLA FESTIV@L) [Aozora Shoujo (Shirane Taito)] Naisho no Gao Gao Ecchi (THE IDOLM@STER CINDERELLA GIRLS) [English]
[Urutsu] Teach Tea Songs (Shiroyuri Girls Love Paradise) [English] [yuriproject]
(CINDERELLA FESTIV@L) [Aozora Shoujo (Shirane Taito)] Naisho no Gao Gao Ecchi (THE IDOLM@STER CINDERELLA GIRLS) [Chinese] [星野願個人漢化]
Classmate to Ecchi Jugyou Ch. 12
Tenkousei JK Elf 3 Saishuushou -Houkago Yagai Jugyou -
[Gyuunyuu Rinda] Minami Sensei no Tadashii Seikyouiku Jugyou | 美波老師的正確的性教育授業 [Chinese]