(SC34) [Titokara 2nd Branch (Manami Tatsuya)] Naisho no Kimochi 2 (Zero no Tsukaima)
(C88) [H-SQUAD (Guglielmo)] Zenra de Suiei no Jugyou!! | Naked Swimming Class!! [English] =LWB=
[Q] Kagai Lesson (Fujouri na Nyotai Kousoku) [Digital]
[Mita Kurumi] Naisho no Photograph (COMIC ANGEL Club 2010-09)
(SC55) [Gachapin Mukku. (Mukai Kiyoharu)] Ririchiyo-sama no Naisho no Oshigoto (Inu x Boku SS)
[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]
Muchimuchi Kanojo no NTR Hoshuu Jugyou
Rika Sensei no Kagai Jugyou | Rika Sensei's Extracurricular Lesson
Tenshi no Houkago Jugyou Chapter 10
[blue killer (Doku Denpa)] Naisho no Yodare Sex [Digital]
Kitakami-san to Naisho no Naisho
[Yanagi] Oshioki Kojin Jugyou (COMIC ExE 02) [Chinese] [今天又是懶覺懶覺的巨篇]
(C89) [brilliant thunder (Yumeno Tanuki)] Oya ni Naisho no Iedex - Toshikoshi-hen
[FEI] Sensei no ♥ Himitsu Jugyou
Musuko no Tameni Tannin to SEX… Jugyou Sankan de Ikasenaide!
[Circle Roman Hikou (Taihei Tengoku)] Sekaiichi Uketai Kojin Jugyou (Quiz Magic Academy)
Joshi-kou de Sex Jugyou ~ Sensei, Ichigenme kara Irenaide!
Raku Pera vol.8 Jugyou sankan
(C93) [J.D.World (Fumi Miyabi)] Onee-san ni wa Naisho ne (Kantai Collection -KanColle-) [English]
[Oozora Kaiko (Kaiko)] Papa ni wa Naisho no Boshi no Fureai [Chinese] [某三人汉化组]
(C76) [Human High-Light Film (Shiosaba)] Naisho no Honey 2 (Cutey Honey)
[Anzaki Moral] Nama Hanjuku Yawaana Jugyou - Fresh Soft-boiled, Sweet Hole Lesson.
[Umino Luka] Naisho no Zangyou
(C88) [Nachtzug (eko)] Ofuro de Naisho (Kantai Collection -KanColle-) [Chinese] [哲学狗汉化组]
(C81) [TIES (Takei Ooki)] Kobato no Naisho. (Boku wa Tomodachi ga Sukunai)
(C81) [CIRCLE ENERGY (Imaki Hitotose)] Sister Maria Sensei no Hachimitsu Jugyou (Boku wa Tomodachi ga Sukunai)
(CCTokyo132) [Kitei (Naoki)] Naisho Banashi (Kuroko no Basuke) [English]
(C94) [Service Heaven (Azukiko)] Kawakami Sensei to Futaba no Himitsu Kojin Jugyou (Persona 5)
Minato-sensei no Kagai Jugyou
[Keno Yantarou] Hageshii Kagai Jugyou
(Geinoujin wa Card ga Inochi! 4) [Colomonyu (Eromame)] Secret Nails | Naisho no Nail (Aikatsu!) [English] {/u/ scanlations}
[Sukiyoshi Shinji] Monmon Kagai Jugyou (Incubus) [English] [mysterymeat3]
Tenshi no Houkago Jugyou Chapter 9
(C90) [conezu step!+Ziggurat (Suzuki Akoni)] JK Yome Sakura no Yagai Jugyou [Chinese] [無邪気漢化組]
[TIES (Takei Ooki)] Mahou Shoujo no Naisho no Oshigoto (Puella Magi Madoka Magica)
Kichiku-sensei no Kagai Jugyou
[Ookami Uo] (Ryuushutsu) JSJC Naisho no Jian Ch. 1-5 [Chinese]
Sensei no ♥ Himitsu Jugyou
(C73) [Samurai Ikka (Kureyon)] Yomako Sensei no Yuuwaku Jugyou (Tengen Toppa Gurren Lagann)
(C89) [Coopy (Yomogi)] Chino-chan to Naisho no Obenkyou (Gochuumon wa Usagi desu ka?)
[Keno Yantarou] Tanoshii Kagai Jugyou
[Aichi Shiho] Okaa-san ni wa Naisho (Otokonoko HEAVEN Vol. 25 DMM Tokubetsu Ban) [Chinese] [瑞树汉化组] [Digital]
[Rokuichi] Ririn-san no Naisho no Kao to Daiji na Oheya | Ririn-san's Secret Expression and Her Precious Room (COMIC HOTMILK 2018-07) [English] [Stupid Beast] [Digital]
(C90) [Shinobi-Rocket (Sasamashin)] Lady to Naisho no Yoru Sanpo (Kantai Collection -KanColle-)
(C85) [Yadokani Daikaiten (Kawamoto Yutsuki)] Naisho no Ecchi (Ro-Kyu-Bu!)
Onnanoko Sapuri 〜Seitenkan Shite Hoken no Jugyou〜
[Muchiuchi (Muchi)] Naisho no Hero | Secret Hero (Osomatsu-san) [English]
(C81) [Sukapon-Do (Kagawa Tomonobu, Yano Takumi)] Zerogumi Kagai Jugyou (Final Fantasy Type-0)
(Shotaket 11) [Sorairo March (Narusawa Sora)] SECRET FILE (Naisho no Yorimichi)
Kirari-Sensei no Hapi Hapi Jugyou
(C91) [Fujiya (Nectar)] Naisho na Shinomiya-san | 四宮同學的秘密 [Chinese] [夢之行蹤漢化組]
(C83) [SHi's Laboratory (SHINGO)] Paizurina sensei no kagai koshu♪
[Jun&Yuri (Yuriko)] Tokubetsu Jugyou Shiyou! Kashima-chan! (Kantai Collection -KanColle-)
(C92) [Tatsumaki Koutei (Takei Tsukasa)] Mifune-san to Umi de Naisho no (THE IDOLM@STER CINDERELLA GIRLS)
[Vitamin Gohan (Hasegawa Keita)] Naisho no Sakuya-san (Touhou Project) [Digital]
Ellen-sensei no Houkago Tokubetsu Jugyou
[Minamida Usuke] Dokidoki Hoshuu Jugyou (COMIC Megastore Alpha 2016-04) [English] [Amateur-Troya-Scans]
[Misao.] Minamo no Naisho | Minamo's Secret (Hajimete Janai yo?) [English] [Rin]
(C90) [H-SQUAD (Guglielmo)] Hokentaiiku Jisshuu Jugyou ~Onnanoko no Karada no Shikumi Hen~ [Chinese] [沒有漢化]
(C88) [brilliant thunder (Yumeno Tanuki, Fue)] Oya ni Naisho no Iedex
Naisho no Kagai Jugyou Nyuumonhen
Hageshii Kagai Jugyou
Yomako-Sensei no Tokubetsu Jugyou
[Itou Nanami] Naisho no Houkago (COMIC Potpourri Club 2014-07) [Chinese] [黑条汉化]
(Puniket 35) [0000 (Akito.)] Rize Sensei to Himitsu no Jugyou (Gochuumon wa Usagi desu ka?) [Chinese] [脸肿汉化组]
(C90) [Upagoya (Endori)] Senpai ni wa Naisho ssu yo? (Granblue Fantasy)
(C80) [Avion Village F (Fechi)] Kamishirasawa Keine no Dosukebe Kojin Jugyou (Touhou Project)
[Ue ni Aru Mikan (Reitou Mikan, Amulai)] Dennou Sekai ni Torawarete ~Onna Avatar de Seihoushi Jugyou, Uketemasu~[Digital]
[Agata] Naisho no Kakurenbo | Hide And Seek With Friend's Mom (COMIC Megamilk Vol. 18) [English] [vaasi]
[Yuzu Ramune] Yankee Musume o Ecchi de Kousei!? ~Jugyou de Ijirare Shitagi ga Gusshori~ 1
[Mori Hiromi] Onee-san no Kagai Jugyou
[Ochikochitei (Tadano Kushami)] Houkago no Kojin Jugyou
(C88) [brilliant thunder (Yumeno Tanuki)] Oya ni Naisho no Iedex
[Q] Kagai Lesson (Fujouri na Nyotai Kousoku) [Chinese] [村长个人汉化] [Digital]