(C83) [CIrcle Ohigetan (Ohigetan)] Ohigebon-35 Classmate Ochinchin Jugyou Sankan [English] {Forbidden+Ranzu}
[SeriharaZ] Campus x Foot
(SC33) [Human High-Light Film (Shiosaba)] Honey no Naisho 3 (Cutey Honey)
(Seishun Cup 13) [Onigiriya (Omusubi)] Zunouha Kagai Lesson (Inazuma Eleven GO)
[kedamono (Tori Hrami)] Naisho no Undoukai Second Season [Colorized] [Digital]
(C91) [conezu step!+Ziggurat (Suzuki Akoni)] JK Yome Sakura no Inokori Jugyou [English] [H-Konbini]
(Shota Scratch 18) [Usamimi Zukin (Kosuzu)] Himitsu No Naisho (The Legend of Zelda)
[Maekawa Hayato] Onee-chan Sensei no Himitsu Jugyou [Chinese] [篆儀通文書坊漢化]
Youkoso Paisen ~AV Joyuu no Kagai Jugyou~ | Welcome graduate ~AV Actress's Extracurricular lesson~
Taiiku Kyoushi 2 ~Bokura no Kagai Jugyou~
(SC32) [Tololinco (Tololi)] Markl to Sophie no Naisho no Ohanashi | Secret Story of Markl and Sophie (Howl's Moving Castle) [English] [Fated Circle]
[Oomichi Imuta] Naisho ni Shite ne | Keep this a Secret, okay (Futanarikko High!) [English] [UsagiTrans]
[Oozora Kaiko (Kaiko)] Papa ni wa Naisho no Boshi no Fureai [Chinese] [某三人汉化组]
(C91) [Fujiya (Nectar)] Naisho na Shinomiya-san
[TIES (Takei Ooki)] Mahou Shoujo no Naisho no Oshigoto (Puella Magi Madoka Magica) [English]
(Kouroumu 6) [04U (Misasagi Task)] Anoko nya Naisho (Touhou Project) [English] [KageSennin]
[ACTIVA (SMAC)] Yomako-sensei no Tokubetsu Jugyou (Tengen Toppa Gurren Lagann) [Chinese] [黑条汉化]
[Syuuen] Delivery Love (Kagai Jugyou) [English] [StatisticallyNP] [Decensored]
(C92) [Brilliant Thunder (Yumeno Tanuki)] Oya ni Naisho no Iedex 5 - Futsukame Hen
[Anzaki Moral] Hanjuku Yawaana Jugyou - Soft-Boiled, so Sweet Hole Lesson.
[Keno Yantarou] Hazukashii Kagai Jugyou | 害羞的課外授業 [Chinese]
[Kitakata Kuniaki] Himitsu no Keijiban H na Onna no Naisho Banashi
[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]
[Konohana] Naisho no Jikan (COMIC Megastore 2009-04) [English] [AlphaYang]
[Kasuga, Shin] Hadakanbo Kyouiku - JK mo Oppai Marudashi!? Sukoyaka Zenra Jugyou 1
Joshi-kou de Sex Jugyou ~ Sensei, Ichigenme kara Irenaide!
[Oshii Rei] Kougyaku Jugyou [Digital]
(C83) [Shinobi Rocket (Sasamashin)] HinaNagi Tokubetsu Jugyou (Hayate no Gotoku!)
Tenshi no Houkago Jugyou Chapter 6
(C72) [Super Flat Lolinitron (Focke Wolf)] Karada no Naisho. (Asatte no Houkou.)
(C54) [Tange Kentou Club (Yokota Mamoru)] Clone Doll Kagai Jugyou / My Favorite Full Colour Gengashuu
[Kiki] Inran Jugyou
[Rokuichi] Ririn-san no Naisho no Kao to Daiji na Oheya | Secret Side of Ririn-san and Her Precious Room (COMIC HOTMILK 2018-07) [English] [Stupid Beast] [Digital]
(C89) [666PROTECT (Jingrock)] Tenkousei JK Elf -Houkago Choukyou Jugyou-
(Sougetsusai 05) [Naisho No Usagi Koya (Tawawaringo)] Jaku Usagi Monogatari
[Minor Boy] Keiko Sensei no Kagai Jugyou - Keiko Sensei Series 1
(C91) [conezu step!+Ziggurat (Suzuki Akoni)] JK Yome Sakura no Inokori Jugyou [Chinese] [無邪気漢化組]
"Zettai Goukaku" Yareru! Shingakujuku Juken Stress Hatsujou Joshi o Tokubetsu Jugyou de Hamemakuri
[Fireball Products] Seki Sensei No Kagai Jisshuu Ver1.5
[Root 12-hedron (Landolt Tamaki)] Zutto Naisho ni Shiteta kedo, Jitsu wa Watashi, Haeteru no. [Digital]
Tenshi no Houkago Jugyou Chapter 9
(SUPER23) [Strawberry (Ichigo)] Tousan ni wa Naisho ni Shitete (Shingeki no Kyojin)
[Nyoroman SHouji] Mucchimuchi Keiko Sensei no Chou Nikkan Dohentai Jugyou! "Kutsujoku no Kuro Mask Hentai Dorei Kamen Kanochi Hen" (Kekko Kamen)
Musuko no Tameni Tannin to SEX… Jugyou Sankan de Ikasenaide!
(C85) [Majimadou (Matou)] Enoshima Sensei no Chou Zetsubouteki Zecchou Jugyou (Danganronpa) [Chinese] [沒有漢化]
Hoshuu Jugyou bu Seikatsu Kiroku | 补习授业部性爱记录
(COMIC1☆9) [Shiratamaco (Shiratama)] Naisho no Passion - The Secret Passion (Pripara)
[Studio Wallaby (Deep Purple '72)] Arashi no Naisho, Aiko no Himitsu (Gad Guard)
(C71) [Pyonpyororin (Akoko.)] Ano... Naisho ni shite kudasai ne? (Suzumiya Haruhi no Yuuutsu)
[Melancolic Hyodo] Hoken no Tokubetsu Jugyou
(C78) [apricot (Anji, Kuroo)] Omote to Ura no Himitsu to Naisho. (Amagami) [English]
[Babymaker (Beco)] Naisho no Kozukuri 2
[Kaitou Yuuhi] Naisho no Oshigoto (Otokonoko HEAVEN Vol. 24) [Chinese] [夜願漢化]
[FEI] Sensei no ♥ Himitsu Jugyou Ch. 1-2
[Nyoroman Shouji] Mucchimuchi Keiko Sensei no Chou Nikkan Dohentai Jugyou! "Muchimuchi Roshutsu Choukyou Aheahe Chigoku Hen" (Kekko Kamen)
Sensei no Himitsu Jugyou | Sensei's Secret Lesson Ch. 1-9
[Root 12-hedron (Landolt Tamaki)] Zutto Naisho ni Shiteta kedo, Jitsu wa Watashi, Haeteru no. | I've always kept this a secret, but the truth is, I have one [English] [UsagiTrans] [Digital]
(C94) [Kitsuneya (Leafy)] Chibikko Eirei to Naisho no Okusuri Techou - Young lady hero secret medicine notebook (Fate/Grand Order)
Kawakami Sensei to Futaba no Himitsu Kojin Jugyou
[Higashino Mikan] Kareshi ni Naisho de ❤ | Behind My Boyfriend's Back ❤ (COMIC Koh Vol. 3) [English] [sureok1]
(C89) [Tatsumaki Koutei (Takei Tsukasa)] Lecia no Naisho Naisho no Chitsujo (Granblue Fantasy) [English] {Hennojin}
[Koppe] Koboreru Naisho (COMIC Kairakuten BEAST 2015-11) [Chinese] [绅士仓库汉化]
[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. 1-5 [English] {Doujins.com}
(COMIC1☆4) [Human High-Light Film (Shiosaba!)] Naisho no Makinami (Rebuild of Evangelion)
(C92) [Macaron*Sketch (Yukatama)] Naisho no Cappuccino (Gochuumon wa Usagi desu ka?)
(C88) [Mama ni wa Naisho (Plasma Beach)] Chan nana no Shokutaku (GOD EATER)
(Puniket 12) [Soul Magic (Sudoo Kaoru)] Suki suki Aiko-chan Mayonaka no naisho (Ojamajo Doremi)
Netorare kagai jugyo.
(Puniket 23) [Suitekiya (Suitekiya Yuumin)] Naisho no HONya-san (Watashi no Ouchi wa HONya-san)
Raku Pera vol.8 Jugyou sankan
[Horihone Saizou] Naisho-Yoo
[Usi] Otto ni Naisho de Ajimi Shite Ch.1-5
[DL Mate] Saimin Jugyou
[AKIRA] Eve no Naisho Banashi 1
[2B (MANA-KO)] Naisho no Haruna-chan (To LOVE-Ru) [Digital]
Futanari Tokubetsu Jugyou
(C90) [Dragon Kitchen (Sasorigatame)] Rem-rin to Naisho no Oshigoto (Re:Zero kara Hajimeru Isekai Seikatsu)
[Ningen tte Iina (Ningen)] Onee-sama ni wa Naisho desu yo? (Kantai Collection -KanColle-) [Digital]
(C90) [ERROR404 (Nikaido Kai)] Naisho ni shite ne (Touken Ranbu)
[FEI] Sensei no ♥ Himitsu Jugyou Ch.1-3
[Babymaker (Beco)] Naisho no Kozukuri [English] [MintVoid]
(C85) [furuike (Sumiya)] Off no Kongou to Naisho no Ohanashi (Kantai Collection -KanColle-) [Chinese] [脸肿汉化组]
(CCFukuoka33) [96。 (Kurokuma)] Naisho no Soudan (Free!)
[Nohri Isawa] Naisho no Kansatsu Nikki (Secret Observation Journal) [English] [Mistvern]
(C78) [apricot (Anji, Kuroo)] Omote to Ura no Himitsu to Naisho. (Amagami)
Enoshima Sensei no Chou Zetsubouteki Zecchou Jugyou
(C82) [THE FLYERS (Naruse Mamoru)] Ako-chan to Naisho no XX + plus (Saki Achiga-hen)
[Irotsuki Sakari] Kanjiru Kagai Jugyou
Rika Sensei no Kagai Jugyou
(Shota Scratch 25) [Yabure Kabure (Agemon)] Ogibo-san niwa Naisho desu. (Fullmetal Alchemist)
Paizurina sensei no kagai koshu♪
(C87) [NextPreview (MIA)] Sugoku ViVid na Seikyouiku Jugyou (Mahou Shoujo Lyrical Nanoha)
[MoonRevenge (Miyuma Subaru)] Futari no Naisho
Tenshi no Houkago Jugyou Chapter 4
[Katsurai Yoshiaki] Amatsuka Gakuen no Kaikan Jugyou (COMIC X-EROS#37) [Chinese] [空気系☆漢化]
[Fireball Products] Seki Sensei No Kagai Jisshuu
Classmate to Ecchi Jugyou Ch. 4
(C88) [Sweet Candle (Sakuraizumi Yuu)] Naisho no Asobi (THE iDOLM@STER CINDERELLA GIRLS) [Chinese] [脸肿汉化组]
(C85) [Majimadou (Matou)] Enoshima-sensei no Chou Zetsubou-teki Zecchou Jugyou + Futaket Paper (Danganronpa)
(C83) [Ameyama Telegraph (Ameyama Denshin)] Rokujou Junko no Haisetsu Kagai Jugyou
(C88) [Decoppachi (Hidiri Rei)] Naisho no IV Satsuei-kai (THE IDOLM@STER MILLION LIVE!)
Bijutsu Jugyou Dessin Model
(C71) [Pyonpyororin (Akoko.)] Ano... Naisho ni shite kudasai ne? (Suzumiya Haruhi no Yuuutsu) [English]
[Guglielmo] Youkoso Paisen ~AV Joyuu no Kagai Jugyou~ (Shishunki Marudashi!) [English] [Azzei]
[Muchiuchi (Muchi)] Naisho no Hero | Secret Hero (Osomatsu-san) [English]
(COMITIA123) [Yukan high Zakura (Chieko)] Bijutsu Jugyou Dessin Model
[Keno Yantarou] Tanoshii Kagai Jugyou
(C80) [Avion Village F (Fechi)] Kamishirasawa Keine no Dosukebe Kojin Jugyou (Touhou Project)
Secret lesson - Himitsu Jugyou
(C94) [Service Heaven (Azukiko)] Kawakami Sensei to Futaba no Himitsu Kojin Jugyou (Persona 5) [English] [CGrascal]
(C89) [TKSpower (Zekkyosyu)] ※Hoshuu Jugyou desu. (ToHeart2)
(COMIC1☆8) [Atelier Lunette (Mikuni Atsuko)] Naisho Nano! -Haruhara-ke San Shimai Monogatari-
(COMIC1☆7) [Bakunyu Fullnerson (Kokuriu)] Naisho no Oshigoto (Bakemonogatari) [Chinese] [黑条汉化]
[Coffee Maker (Asamine Tel)] Naisho desu yo (Fate/Grand Order) [Chinese] [胸垫汉化组] [Digital]
Classmate to Ecchi Jugyou Ch. 11
[Ginto] Ure Niku Neburi Gakuenchou to Boku no Ero Hon Kagai Jugyou
(SUPER23) [Dogfes (sio)] Kagai Jugyou (Ansatsu Kyoushitsu)
(COMIC1☆5) [Mama ni wa Naisho (Purukogi Beach)] GIGANTIC DIVA (King of Fighers)