(SUPER22) [Mukyu's Paradise (Mukyuu)] Naisho no Houkago (Baka to Test to Shoukanjuu)
[Junk Center Kameyoko Bldg] Okaa-san ga Naisho de Hikikomori Musuko no Seishori no Aite o Shiteiru Hanashi.
[Kuronisiki (Takaharu)] Onee-sama-tachi niwa Naisho de Senkan ni Narimasu (Kantai Collection -KanColle-) [Chinese] [koolo個人漢化] [Digital]
[Taiyoukei Kaihatsu Kikou (Marubayashi Shumaru)] Setsuna-sensei no Hachimitsu Jugyou (Bishoujo Senshi Sailor Moon) [Digital]
[Karakuchi Choucream] Minarai Succubus Himitsu no Jugyou (COMIC Mangekyo 2015-07) [Chinese] [绅士仓库汉化]
[Kasuga, Shin] Hadakanbo Kyouiku - JK mo Oppai Marudashi!? Sukoyaka Zenra Jugyou 2 | Hadakanbo Education - Schoolgirls' Breasts are Exposed!? Naked Health Lesson 2 [English] [Decensored] [artfish]
Tenshi no Houkago Jugyou Chapter 4
[Pavington (Takahara Sea-Gull, Marukido Sado)] Narashite Naisho no Concerto
[Itou Nanami] Naisho no Houkago (COMIC Potpourri Club 2014-07) [Chinese] [黑条汉化]
[XX-ya tte koto wa Naisho da. (Naisho da.)] Doremi-sama Doremi-sama Doremi-sama (Ojamajo Doremi)
[Kasuga, Shin] Hadakanbo Kyouiku - JK mo Oppai Marudashi!? Sukoyaka Zenra Jugyou 1
(CCFukuoka33) [96。 (Kurokuma)] Naisho no Soudan (Free!)
(SC32) [Tololinco (Tololi)] Markl to Sophie no Naisho no Ohanashi | Secret Story of Markl and Sophie (Howl's Moving Castle) [English] [Fated Circle]
[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}
[Takase Yuu] Naisho no Jiyuuchou
[Yan-Yam (Yan-Yam)] Inkou Kagai Jugyou (Onegai Teacher)
[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]
(C81) [CIRCLE ENERGY (Shin Shunkashuutou)] Sister Maria Sensei no Hachimitsu Jugyou (Boku wa Tomodachi ga Sukunai) [Digital]
(CR35) [Chokudoukan (Hormone Koijirou, Marcy Dog)] Ink Sensei no Ikenai Kagai Jugyou - Teacher Ink's an Extracurricular Erotic Lecture (Moetan)
[sho-tan] Taiiku no Jugyou
Kawakami Sensei to Futaba no Himitsu Kojin Jugyou
(SUPER22) [Kiiro Bird (Pappa)] Oyajidomo ni wa Naisho dazo (Magi: The Labyrinth of Magic)
Kyou mo Mata Katei Kyoushi ga Kite Kyousei Mesu Ochi Saimin Jugyou o Suru Hi
[Tsukino Jyogi] Minato-sensei no Kagai Jugyou (COMIC HOTMiLK 2015-09) [Chinese] [瓜皮汉化]
[Kasuga, Shin] Hadakanbo Kyouiku - JK mo Oppai Marudashi!? Sukoyaka Zenra Jugyou 1 | 女高中生ㄋㄟㄋㄟ全都露!? 健康教育全裸開課 [Chinese][變態浣熊漢化組][Decensored]
[Asai Kikaku (Satou Masa)] Suki Suki! Bokura no Mucchiri Ona-Hole Sensei! Zenryoku Nakadashi Kojin Jugyou [Digital]
(C73) [SUTE☆POTE (Kagura Soushi)] riri tama hoshuu jugyou! | Riritama Supplementary Lessons (Mahou Shoujo Lyrical Nanoha) [English]
(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]
[Iguchi Sentarou] Classmate to Ecchi Jugyou Ch.1 [Chinese]
[Ruku-Pusyu] Quistis Sensei no Kojin Jugyou (Final Fantasy VIII)
(Shota Scratch 18) [Usamimi Zukin (Kosuzu)] Himitsu no Naisho (The Legend of Zelda) [English] =SW=
(C92) [666PROTECT (Jingrock)] Tenkousei JK Elf 3 Saishuushou -Houkago Yagai Jugyou -
Kitakami-san to Naisho no Naisho
[Leafy] Mama ni Naisho no Hatsujouki | 對媽媽保密的發情期 [Chinese] [渣橙子個人單行本漢化]
(Gakuen Trial 1.5 Kagai Jugyou) [ZCC (Zakiko)] Hi ga Kurete (Super Danganronpa 2)
(C89) [conezu step!+Ziggurat (Suzuki Akoni)] JK Yome Sakura no Kagai Jugyou
[Sankuro] Himitsu no Jugyou Sankan | Secret of the Classroom Visit (COMIC LO 2011-01) [English] [Mistvern]
[Sada Ko-ji] Onnakyoushi Ryoujoku Jugyou Burn & Freeze
[Atelier Hinata (Hinata Yuu)] Hoshuu Jugyou bu Seikatsu Kiroku | 补习授业部性爱记录 [Chinese] [童田明治在坐月子汉化组]
※Hoshuu Jugyou desu.
[Ookami Uo] (Ryuushutsu) JSJC Naisho no Jian Ch. 1-5 [Chinese]
(C85) [Ishikawa Pro (Ishikawa Naoya)] Kuttsukiboshi -Naisho no Oshigoto- (Kuttsukiboshi)
(CINDERELLA FESTIV@L) [Aozora Shoujo (Shirane Taito)] Naisho no Gao Gao Ecchi (THE IDOLM@STER CINDERELLA GIRLS) [English]
JK Yome Sakura no Inokori Jugyou
[Babymaker (Beco)] Naisho no Kozukuri [English] [MintVoid]
[Ochikochitei (Tadano Kushami)] Houkago no Kojin Jugyou
(Ugetsusai) [Schwester (Inasaki Shirau)] Naisho no Reisen (Touhou Project)
[FZ: (Fujisaki Fujiko)] Kore mo Jugyou no Ikkan desu [Digital]
[Yanagawa Rio] Naisho no Wonderland | Wonderland of Secrets (GoGo! Girls) [English] {5 a.m.}
[ShiraishiNsuke] Naisho no Ouma-san Gokko | Secret Horse Play (COMIC BAVEL 2017-01) [English] {doujins.com} [Digital]
(COMIC1☆5) [Mama ni wa Naisho (Purukogi Beach)] GIGANTIC DIVA (King of Fighers)
(C76) [Human High-Light Film (Shiosaba)] Naisho no Honey 2 (Cutey Honey)
[win win] Inwai Jugyou
Classmate to Ecchi Jugyou Ch. 8
Classmate to Ecchi Jugyou Ch. 1
[ARI] Naisho No Hokenshitsu (COMIC Penguin Celeb 2015-03) [Chinese] [上古勤受荣誉呈献]
Yancha Bouzu Yoru no Kagai Jugyou
(C94) [Service Heaven (Azukiko)] Kawakami Sensei to Futaba no Himitsu Kojin Jugyou (Persona 5)
[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}
Onna Kishi no Kagai Katsudou
[Yukan high Zakura (Chieko)] Bijutsu Jugyou Dessin Model [Digital]
(COMIC1☆9) [Atelier Lunette (Mikuni Atsuko)] Naisho Nano! -Haruhara-ke Sanshimai Monogatari- 2 [English]
Naisho no Kagai Jugyou Nyuumonhen
[2B (MANA-KO)] Naisho no Haruna-chan (To LOVE-Ru) [Digital]
(COMIC1☆6) [MIX-ISM (Inui Sekihiko)] Naisho no ×××。 (Bakemonogatari)
Megane Loli Choukyou Jugyou!!
(C72) [C@T Slash (Kahama Youko)] Naisho no Jikan (Kodomo no Jikan)
(C71) [Kurage no Candume (Yoshino)] Naisho! It's a Night Show! (Simoun)
(C83) [CIrcle Ohigetan (Ohigetan)] Ohigebon-35 Classmate Ochinchin Jugyou Sankan [English] {Forbidden+Ranzu}
[N2jirai (Nimu)] Tsukihi-chan ni wa Naisho de (Nisemonogatari) [Digital]
(COMIC1☆7) [Aroma Gaeru (Numahana)] Hamon Kyoushi no Setekina Jugyou (JoJo's Bizarre Adventure)
Tenshi no Kagai Jugyou Ch. 4
[Koshou Shoushou] Kagai Jugyo ha Houkago ni
[Misao.] Minamo no Naisho | Minamo's Secret (Hajimete Janai yo?) [English] [Rin]
(COMIC1☆7) [Aroma Gaeru (Numahana)] Hamon Kyoushi no Setekina Jugyou | Sexual Lessons of the Ripple Teacher (JoJo's Bizarre Adventure) [English] {doujin-moe.us}
Tenshi no Kagai Jugyou Ch. 3
[Iguchi Sentarou] Classmate to Ecchi Jugyou 1~3[Digital]
Classmate to Ecchi Jugyou Ch. 9
(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
[Koutarou] Ritsuko-Sensei no Kojin Jugyou | Big Breasts Teacher, Children's Virginity Hunting Expert. (COMIC Bazooka 2011-12) [English]
(C90) [Dragon Kitchen (Sasorigatame)] Rem-rin to Naisho no Oshigoto (Re:Zero kara Hajimeru Isekai Seikatsu)
(COMIC1☆9) [Shiratamaco (Shiratama)] Naisho no Passion - The Secret Passion (Pripara) [Chinese] [CE家族社]
(Shotaket 11) [Studio Rakkyou (Various)] Tsubasa x4 no Naisho (Naisho no Yorimichi)
(CR31) [Studio Wallaby (Deep Purple '72)] Su no Naisho!! -The secret of Su- (Vampiyan Kids)
(C72) [SimaSima System (Nagisawa You)] Naisho no Hokentaiiku (Cardcaptor Sakura)
[Unknown (Unknown)] Taiiku Kyoushi 2 ~Bokura no Kagai Jugyou~
(C73)[Alpha to Yukaina Nakamatachi] Naisho no Trap (Quiz Magic Academy)
(C92) [Tenrake Chaya (Ahru.)] Matsurinoyoru no Naisho (Kantai Collection -KanColle-)
Girotin Konsoku Hoken no Jugyou
[Sasamori Tomoe] Yuutousei ni Hitsuyou na Jugyou | A Class an Honor Student Needs (COMIC HOTMiLK 2014-05) [English] [Facedesk]
[Koppe] Koboreru Naisho (COMIC Kairakuten BEAST 2015-11) [Chinese] [绅士仓库汉化]
(C94) [Kurumi Namiki (Mita Kurumi)] Atago-san to Naisho no Ecchi (Kantai Collection -KanColle-)
[Iizuki Tasuku] Omoi de Ippai Ni Nin no Goudou jugyou?
[MULTIVITAMIN] Jugyou Sankan DL ban (Original)
[R-Deco (Yusa)] Youjo Senpai niwa Naisho! (Aikatsu!) [Digital]
Onee-chan Sensei no Himitsu Jugyou
Tokubetsu Jugyou Shiyou! Kashima-chan!
Kaoru Sensei no Tokubetsu Jugyou
(Shota Scratch 31) [Koneko no Marionette (Kuonji Shutaka, Poron, Namao)] Naisho no Otogibanashi 2 [English] {Shotachan}
[Futaba Yae] Sabotte Hamatte Hoshuu Jugyou | Skip the Extra Class and Fuck Instead (COMIC Shingeki 2019-01) [English] [desudesu] [Digital]
Mizuho no Ecchi na Hoshuu Jugyou
[Princess Project. (Sentape)] Private Lesson ~Nagato Yuki no Kojin Jugyou~ (Suzumiya Haruhi no Yuuutsu) [Digital]
[Higashimidou Hisagi] Momozono Gakuensei Kagaku Jugyou Houkago Fuck - After School Fuck
(C84) [Angel Bless (Tsukiji)] Kore wa Ze-ttai ni Naisho desu kara ne! (Touhou Project)
[Kaitou Yuuhi] Naisho no Oshigoto (Otokonoko HEAVEN Vol. 24) [English] [mysterymeat3]
[PLEIADES☆FORTUNE (Kaniyama Yusuke)] Natsuyasumi Hoshuu Jugyou
(Break Shot! 9) [Zawameki Jambo (Zawameki)] Naisho no Hanashi (Danganronpa)
(Puniket 23) [Suitekiya (Suitekiya Yuumin)] Naisho no HONya-san (Watashi no Ouchi wa HONya-san)
[MARUTA] Boku to Kanojo no Hikakuteki Naisho no Nichijou (Complete)
[Fireball Products] Seki Sensei No Kagai Jisshuu Ver1.5
Kagai Jugyou Sakuya Hen
(C85) [Majimadou (Matou)] Enoshima Sensei no Chou Zetsubouteki Zecchou Jugyou (Danganronpa)
[Light Pink] Yes! Kagai Katsudou (Yes! Precure 5)
[HATENA-BOX (Oda Kenichi)] Hokentaiiku no Hoshuu Jugyou (Baka to Test to Shoukanjuu) [Digital]
(C56) [Okosama Lunch (Nishinozawa Kaorisuke, Hirayan)] Okosama Lunch Kagai Jugyou
Rika Sensei no Kagai Jugyou | Rika Sensei's Extracurricular Lesson
Abunai Kagai Jugyou | 위험한 과외 수업
[Rakko] Papa ni wa Naisho! | Keep It A Secret From Daddy! (Murikuri) [English] [desudesu]
[Okosama Lunch (Nishinozawa Kaorisuke, Hirayan)] Okosama Lunch Kagai Jugyou Light
[SAIGA dou] Otto ni Naisho de Kozukuri Takuhai Service Oshiharai wa Teisou Hikikae
(C85) [Mama ni wa Naisho (Plasma Beach)] Hoshokukei Joshi (GOD EATER)
(SC30) [P-Forest (Hozumi Takashi)] Otome no Naisho Nina-chan to iro iro... (Mai Otome)
(COMIC1☆8) [TriaL3 (Various)] Naisho no Imouto Ecchi [Chinese] [佳奈助汉化]
[Konohana] Naisho no Jikan (COMIC Megastore 2009-04) [Chinese]
(C78) [apricot (Anji, Kuroo)] Omote to Ura no Himitsu to Naisho. (Amagami)
(C73) [Samurai Ikka (Kureyon)] Yomako Sensei no Yuuwaku Jugyou (Tengen Toppa Gurren Lagann)
[Teruki Kuma] Naisho da yo
(CR31) [Studio Wallaby (Various)] Rizell no Naisho (Rizelmine)
(C78) [Titokara 2nd Branch (Manami Tatsuya)] Ookami-san to Naisho no Doku Ringo (Ookami-san to Shichinin no Nakama-tachi)
[Phantom] Tsuya Ane ~Onee-san no Micchaku Jugyou~ [Chinese]
Monmon Kagai Jugyou
(C82) [Spice Style Company (Kabutogani)] Naisho no Hanashi (Bakemonogatari)
(CINDERELLA FESTIV@L) [Aozora Shoujo (Shirane Taito)] Naisho no Gao Gao Ecchi (THE IDOLM@STER CINDERELLA GIRLS) [Chinese] [星野願漢化WEI嵌字]
(C88) [Decoppachi (Hidiri Rei)] Naisho no IV Satsueikai (THE IDOLM@STER MILLION LIVE!) [Chinese] [MISO个人汉化]
[Ponsuke] Naisho no Massage (COMIC LO 2016-03) [Chinese] [想抱雷妈汉化组] [Digital]
Ninshin Inokori Jugyou
(C89) [EX35 (Kamaboko RED)] Minna ni Naisho no Setting! (Bakusou Kyoudai Let's & Go!!)
(C92) [Macaron*Sketch (Yukatama)] Naisho no Cappuccino (Gochuumon wa Usagi desu ka?)