(Shotaket 11) [Studio Rakkyou (Various)] Tsubasa x4 no Naisho (Naisho no Yorimichi) [English]
[FEI] Sensei no ♥ Himitsu Jugyou Ch.1-3
[Keno Yantarou] Tanoshii Kagai Jugyou - Happy Extracurricular Lesson [Chinese]
(C58) [Studio Wallaby (Fuu)] Reiko no Naisho! (Comic Party)
[Asai Kikaku (Satou Masa)] Suki Suki! Bokura no Mucchiri Ona-Hole Sensei! Zenryoku Nakadashi Kojin Jugyou [Digital]
[Garakuta Shoujo (Miito Shido)] Kanojo wa Chou Yuumei Geinoujin... Soshite Boku ni Naisho de AV Joyuu Satomi-Satona Gojitsudan 2
[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]
[Light Pink] YES! Yes! Kagai Katsudou 2 (Yes! Precure 5)
Kichiku-sensei no Kagai Jugyou
(C91) [Utaneya (Shion)] Naisho no Djeeta Onee-chan (Granblue Fantasy)
[SAIGA dou] Otto ni Naisho de Kozukuri Takuhai Service Oshiharai wa Teisou Hikikae
[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]
(C77) [Punipuni Doumei (Mizuki Gyokuran)] Naisho no Wankoro Mochi (Anyamaru Tantei Kiruminzoo)
(C71) [Ohtado (Oota Takeshi)] Naisho da yo! Mahou no Club Katsudou (Sasami Magical Girls Club)
(C92) [Tatsumaki Koutei (Takei Tsukasa)] Mifune-san to Umi de Naisho no (THE IDOLM@STER CINDERELLA GIRLS)
[Usi] Otto ni Naisho de Ajimi Shite Ch. 1-11
(C93) [Brilliant Thunder (Yumeno Tanuki)] Oya ni Naisho no Iedex 6 - Dekichatta Hen [Chinese] [脸肿汉化组]
[Syuuen] Delivery Love (Kagai Jugyou) [English] [StatisticallyNP] [Decensored]
(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]
[Natsuyasumi] Kagai Jugyou (Tamako Market)
Enoshima Sensei no Chou Zetsubouteki Zecchou Jugyou {Less Censored Version}
Tenshi no Kagai Jugyou Ch. 4
(C94) [Critical Hit! (Zetz)] Mutsuki no Naisho (Azur Lane)
(C69) [Renai Mangaka (Naruse Hirofumi)] Otome Chikku Kagai Jugyou (Mai-Otome)
Kyou mo Mata Katei Kyoushi ga Kite Kyousei Mesu Ochi Saimin Jugyou o Suru Hi
(C81) [TIES (Takei Ooki)] Kobato no Naisho. (Boku wa Tomodachi ga Sukunai)
(C90) [Mama ni wa Naisho (Plasma Beach)] Kinniku Bokujou (THE IDOLM@STER)
Sensei no Himitsu Jugyou | Sensei's Secret Lesson Ch. 1-9
[Anyakunin] Kagai Jugyou (Futa-On-Male)
(SUPER22) [Kiiro Bird (Pappa)] Oyajidomo ni wa Naisho dazo (Magi: The Labyrinth of Magic)
Sensei to Himitsu no Jugyou | Secret Lessons with Sensei
(C82) [Natsu no Umi (Natsumi Akira)] Mama ni wa Naisho no XXX (Smile PreCure!)
(C88) [Gadget (Chobariki Mitsuo)] Naisho no Beit no Susume (Yama no Susume)
[ShiraishiNsuke] Naisho no Ouma-san Gokko | Secret Horse Play (COMIC BAVEL 2017-01) [English] {doujins.com} [Digital]
Jugyou Chuu Ni You Kya Joshi Ga Omorashi
Yanagida-sensei no Zenra Jugyou
[Anthology] Megane Loli Choukyou Jugyou!! ~Otonashii Megane Lolikko ni Muriyari Dekachin Sounyuu~
[Kanzaki Shirou] Yume no Kuni no Naisho Banashi
[Goban] Iinchou no Kagai Jugyou | Class President's Extracurricular Lesson (Comic Megastore H 2012-05) [English] {numberkawshin} [Digital]
[Keno Yantarou] Tanoshii Kagai Jugyou
(C84) [Angel Bless (Tsukiji)] Kore wa Ze-ttai ni Naisho desu kara ne! (Touhou Project)
[BOSS Chin] Naisho no Ota x Bitch (COMIC Shingeki 2012-10) [English] [desudesu] [Digital]
[TIES (Takei Ooki)] Mahou Shoujo no Naisho no Oshigoto (Puella Magi Madoka Magica)
(SC32) [Tololinco (Tololi)] Markl to Sophie no Naisho no Ohanashi | Secret Story of Markl and Sophie (Howl's Moving Castle) [English] [Fated Circle]
(C83) [SHi's Laboratory (SHINGO)] Paizurina sensei no kagai koshu♪
(C88) [Decoppachi (Hidiri Rei)] Naisho no IV Satsuei-kai (THE IDOLM@STER MILLION LIVE!)
[Teruki Kuma] Naisho da yo
Classmate to Ecchi Jugyou Ch. 5
Kitakami-san to Naisho no Naisho
[Yukan high Zakura (Chieko)] Shashin-bu Kounai Roshutsu Satsueikai - Bijutsu Jugyou Dessin Model 2 [Digital]
(Puniket 12) [Soul Magic (Sudoo Kaoru)] Suki suki Aiko-chan Mayonaka no naisho (Ojamajo Doremi)
[Studio Wallaby (Various)] Vitamin-B5 1/4 Ruri Ruri Naisho no Maid Nikki (Martian Successor Nadesico)
(CR31) [Studio Wallaby (Various)] Rizell no Naisho (Rizelmine)
(C79) [Human High-light Film (Shiosaba)] Naisho no Ayanami (Neon Genesis Evangelion)
[Kitani Sai] Himitsu Jugyou
(SC36) [Lezmoe! (Oyu no Kaori)] Zettai Naisho! Himitsu no Otomari nano (Mahou Shoujo Lyrical Nanoha StrikerS)
(Shota Scratch 18) [Usamimi Zukin (Kosuzu)] Himitsu no Naisho (The Legend of Zelda) [English] =SW=
(Geinoujin wa Card ga Inochi! 4) [Colomonyu (Eromame)] Naisho no Nail (Aikatsu!) [2nd Edition]
(COMIC1☆7) [Aroma Gaeru (Numahana)] Hamon Kyoushi no Setekina Jugyou (JoJo's Bizarre Adventure)
[Anzaki Moral] Kanbyou Shite Ageru | Sinful Nursing (Hanjuku Yawaana Jugyou) [English] [ugliblawg]
Kawakami Sensei to Futaba no Himitsu Kojin Jugyou | Una lección privada y secreta con Futaba y Kawakami-sensei
(Sabaki no Niwa 21) [Ko9konnan (mov)] Naisho no Shimatsusho | 秘密的检讨书 (Gyakuten Saiban) [Chinese] [黑夜汉化组]
[Asahina Makoto] Naisho no Wareme Lesson
(C94) [Doku Tonkotsu Niku Dorei (Tanohito)] Chika-chan ni mo Naisho no Himitsu 2 (Love Live! Sunshine!!)
(C90) [Kaminari-neko (Eitarou)] Miho to Anzu no Naisho no Himegoto (Girls und Panzer) [Chinese] [一匙咖啡豆汉化组]
(C94) [MottoCompany (FLIPPER)] Senshadou Musume no Ikenai Kojin Jugyou (Girls und Panzer)
[Kuro Fn] Seiseki Up! Tokubetsu Kojin Jugyou no Himitsu (Pakorare Award) [Chinese] [Digital]
Keiko Sensei no Chijoku Jugyou
(C59) [Chuuni+OUT OF SIGHT (Kim Chii)] Onee-chan to Naisho 01
[Light Pink] Yes! Kagai Katsudou (Yes! Precure 5)
[Shunjou Shuusuke] Naisho no Jouji | Secret Affair (Osaekirenai kono Kimochi) [English] {doujin-moe.us}
[Kuku ya (ckj)] Naisho desu yo? Kald-san (Firis no Atelier)
[Dorachefu] Naisho no Zupohame Shinkon Life (ANGEL Club 2018-11) [Digital]
[Ponsuke] Naisho no Kaihou | Secret Nursing (COMIC LO 2017-12) [English] [dame ningen]
(CR25) [Studio Wallaby (Kokuden Kadotake, Niiruma Kenji, Deep Purple '72)] Purikura no Naisho (Princess Crown)
(Reitaisai 14) [Rocket Chousashitsu (Koza)] Kazami Yuuka to Naisho Play (Touhou Project) [English] [desudesu]
[FEI] Sensei no ♥ Himitsu Jugyou Ch. 1-2
[Pavington (Takahara Sea-Gull, Marukido Sado)] Narashite Naisho no Concerto
Tenshi no Kagai Jugyou Ch. 9
[Studio Wallaby (Various)] VITAMIN-B5 1/3 Ruri Ruri Naisho no Gakuen Nikki (Kidou Senkan Nadesico)
[Futaba Yae] Sabotte Hamatte Hoshuu Jugyou | Skip the Extra Class and Fuck Instead (COMIC Shingeki 2019-01) [English] [desudesu] [Digital]
[AKIRA] Eve no Naisho Banashi 1
(C79) [Human High-light Film (Shiosaba)] Naisho no Ayanami (Neon Genesis Evangelion) [English] [CGrascal]
(Gakuen Trial 1.5 Kagai Jugyou) [ZCC (Zakiko)] Hi ga Kurete (Super Danganronpa 2)
[Agata] Naisho no Kakurenbo (COMIC Megamilk Vol.18)
[Koneko Gumi, Shounen Marionette (Poron, Kuonji Shutaka, Namao)] Naisho no Otogibanashi [English] {Shotachan}
[Melancolic Hyodo] Hoken no Tokubetsu Jugyou
(C89) [conezu step!+Ziggurat (Suzuki Akoni)] JK Yome Sakura no Kagai Jugyou
(C88) [PINK CHUCHU (Mikeou)] Naisho no Shintai Sokutei (Gochuumon wa Usagi desu ka?) [Chinese] [脸肿汉化组]
[Yuzuponz (Kikira)] Inumimi Seikatsu ~Hatsujouki no Itoko Namahame Tokubetsu Jugyou~ [Digital]
Naisho no Kagai Jugyou Ouyou Hen
Naisho no Kagai Jugyou {Hennojin}
(C78) [Angel☆Tear (Togo)] Hinata to Yui no Kagai Jugyou (Angel Beats!)
[Minor Boy] Keiko Sensei no Kagai Jugyou - Keiko Sensei Series 1
JK Yome Sakura no Kagai Jugyou
[Usi] Otto ni Naisho de Ajimi Shite Ch. 1-9
[hcom] Jugyou ni Kyousei Rape Time ga Dounyuu Saremashita ~ Suki na Ko wo Hame Houdai! Kyousei Hame Jikan Start!
[Yukan high Zakura (Chieko)] Bijutsu Jugyou Dessin Model [Digital]
[Koshou Shoushou] Kagai Jugyo ha Houkago ni
(C78) [Mama ni wa Naisho (Purukogi Beach)] Exquisite Chocolate (Dragon Quest IV)
(C88) [THE FLYERS (Naruse Mamoru)] Maekawa-san to Naisho no XX (THE IDOLM@STER CINDERELLA GIRLS)
(C93) [ParadiseGom (Gorgonzola)] Naisho no Ohime-sama (Dragon Quest XI)
(C72) [MURDERHOUSE (Workaholic)] Boku to Mama no Naisho (Keroro Gunsou)
(SC2016 Winter) [GOD Ryokutya (Bu-chan)] Papa ni wa Naisho yo? (Brave Beats)
[blue killer (Doku Denpa)] Naisho no Yodare Sex [Digital]
[Gyuunyuu Rinda] Minami Sensei no Tadashii Seikyouiku Jugyou | 美波老師的正確的性教育授業 [Chinese]
[Maekawa Hayato] Onee-chan Sensei no Himitsu Jugyou [Chinese] [篆儀通文書坊漢化]
[Babymaker (Beco)] Naisho no Kozukuri [English] [MintVoid]
(C54) [Studio Wallaby (Kokuden Kadotake, Deep Purple '72, Leopard)] Mana no Naisho (White Album)
[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. 1-2 [English] {Doujins.com}
[Junai Meringue-don (Kijima Hyougo)] Saisho no, Naisho no. + Natsu no Kedamono (Haikyuu!!)
[Studio Claim] Havayama niwa Naisho... (Urusei Yatsura)
(SUPER24) [Rolling box (Kanaru Tabito, Shiina Akira)] Kyosuke ni wa Naisho (THE IDOLM@STER SideM)
(C92) [Retasuya (Retasu)] Kaiboukan to Naisho no Asobi (Kantai Collection -KanColle-)
[Root 12-hedron (Landolt Tamaki)] Zutto Naisho ni Shiteta kedo, Jitsu wa Watashi, Haeteru no. [Digital]
[Gekkou Tei (Seres Ryu)] Chiron Sensei no Seikou Jugyou (Fate/Grand Order) [Digital]
(C82) [THE FLYERS (Naruse Mamoru)] Ako-chan to Naisho no XX + plus (Saki Achiga-hen)
(Puniket 37) [Kouya ni Sakebu Aitsu no Heya (Balpanther)] Naisho no Koukai Nisshi (High School Fleet)
[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 2 [Digital]
[BIG BOSS] Ichioku Sou Gyokusai╱Souko Sensei no Hachimitsu Jugyou (Rikujou Boueitai Mao-chan, Asagiri no Miko)
(C74) [Naruho-dou (Naruhodo)] Sekai Ichi Uke Tai Anko no Jugyou (Naruto) [English] {doujin-moe.com}
[Torajima-shi Kouhouka (Torajimaneko)] Builder to Fighter no Naisho Banashi (Gundam Build Fighters) [Digital]
(C91) [conezu step!+Ziggurat (Suzuki Akoni)] JK Yome Sakura no Inokori Jugyou [Chinese] [無邪気漢化組]
(COMIC1☆11) [0000 (Akito.)] Rize Sensei to Himitsu no Jugyou♪ (Gochuumon wa Usagi desu ka?)
[Fireball Products] Seki Sensei No Kagai Jisshuu Ver1.5
(COMIC1☆7) [Aroma Gaeru (Numahana)] Hamon Kyoushi no Setekina Jugyou (JoJo's Bizarre Adventure) [English] {DesuDesu}
[Gyuunyuu Rinda] Minami Sensei no Tadashii Seikyouiku Jugyou
Naisho no Kagai Jugyou Nyuumonhen
(COMIC1☆6) [N2jirai (Nimu)] Tsukihi-chan ni wa Naisho de (Nisemonogatari)
[Shunjou Shuusuke] Kojin Jugyou | Private Lesson (COMIC MUJIN 2012-08) [English] [darknight]
Tenshi no Kagai Jugyou Ch. 3
[Mitarashi Kousei] Seikou Jugyou (teaching sex)
(C89) [Jagabata (Oimo)] Naisho no Futarikiri (PriPara)
(C90) [H-SQUAD (Guglielmo)] Hokentaiiku Jisshuu Jugyou ~Onnanoko no Karada no Shikumi Hen~ [Chinese] [沒有漢化]