(C89) [EX35 (Kamaboko RED)] Minna ni Naisho no Setting! (Bakusou Kyoudai Let's & Go!!)
[Syuuen] Kagai Jugyou
[Ruku-Pusyu] Quistis Sensei no Kojin Jugyou (Final Fantasy VIII)
[Studio Wallaby (Deep Purple '72)] Arashi no Naisho, Aiko no Himitsu (Gad Guard)
(C90) [Brilliant Thunder (Yumeno Tanuki)] Oya ni Naisho no Umi no Iedex
[Shouji Ayumu] Naisho desu yo | It's a secret! (Chiccha-na Onaka) [English] [Rin]
Houkago no Kojin Jugyou
[Gyuunyuu Rinda] Minami Sensei no Tadashii Seikyouiku Jugyou
(C73) [SUTE☆POTE (Kagura Soushi)] riri tama hoshuu jugyou! | Riritama Supplementary Lessons (Mahou Shoujo Lyrical Nanoha) [English]
(SC2017 Winter) [TwinBox (Hanahanamaki, Sousouman)] Kouen no Naisho na Koto (Kantai Collection -KanColle-)
(C86) [T.K.H.K (Hayami Aya)] Kare to Kanojo no Naisho na Natsu no Hi (Detective Conan)
(CiNDERELLA ☆ STAGE 6 STEP) [Rokata Aruki (Akino Komichi)] Naisho no Ohanashi o (THE IDOLM@STER CINDERELLA GIRLS)
[Oshii Rei] Kougyaku Jugyou
[Agata] Naisho no Kakurenbo | Hide And Seek With Friend's Mom (COMIC Megamilk Vol. 18) [English] [vaasi]
(CR35) [Chokudoukan (Hormone Koijirou, Marcy Dog)] Ink Sensei no Ikenai Kagai Jugyou - Teacher Ink's an Extracurricular Erotic Lecture (Moetan)
[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}
(C94) [Tatsumaki Koutei (Takei Tsukasa)] Mifune-san to Producer ga Otsukiai Shihajimete Naisho no (THE IDOLM@STER CINDERELLA GIRLS)
(C83) [Shinobi Rocket (Sasamashin)] HinaNagi Tokubetsu Jugyou (Hayate no Gotoku!)
[Root 12-hedron (Landolt Tamaki)] Zutto Naisho ni Shiteta kedo, Jitsu wa Watashi, Haeteru no. [Digital]
[Ookami Uo] (Ryuushutsu) JSJC Naisho no Jian [Digital]
[Guglielmo] Youkoso Paisen ~AV Joyuu no Kagai Jugyou~ (Shishunki Marudashi!) [English] [Azzei]
Asahina Mikuru-sensei no Tokubetsu Jugyou
(C91) [conezu step!+Ziggurat (Suzuki Akoni)] JK Yome Sakura no Inokori Jugyou
[Katsurai Yoshiaki] Kyou-sei Kagai Shidou | After School Obedience Coaching (COMIC Megastore 2010-02) [English] {doujin-moe.us}
[Human High-Light Film (Nise Tsuruta Hirohisa)] Honey no Naisho 2 (Cutey Honey)
(C73) [SUTE☆POTE (Kagura Soushi)] riri tama hoshuu jugyou! (Mahou Shoujo Lyrical Nanoha)
(C84) [Angel Bless (Tsukiji)] Kore wa Ze-ttai ni Naisho desu kara ne! (Touhou Project)
(C88) [brilliant thunder (Yumeno Tanuki)] Oya ni Naisho no Iedex
(C94) [Kaiteinnu (Rajunnu)] Mary ni wa Naisho desu! (Fate/Grand Order)
Tenshi no Houkago Jugyou Chapter 5
[Yuzuponz (Kikira)] Inumimi Seikatsu ~Hatsujouki no Itoko Namahame Tokubetsu Jugyou~ [Digital]
(C84) [ROMEO DASH (Kitto Shibaru)] Naisho desuyo, Reimu-san! (Touhou Project)
Dennou Sekai ni Torawarete ~Onna Avatar de Seihoushi Jugyou, Uketemasu~
(C91) [Fujiya (Nectar)] Naisho na Shinomiya-san
(C94) [KURUBUSI-KAI (Dowarukofu)] Mikan no Naisho no Shuumatsu (To LOVE-Ru)
Classmate to Ecchi Jugyou Ch. 2
[Sisei Tokei] Kojin Jugyou -Kokuhaku- (COMIC MILF 2012-12 Vol. 10) [English] [jhenier13]
[Phantom] Tsuya Ane ~Oneesan no Micchaku Jugyou~
[Kukuya (ckj)] Naisho desu yo? Kald-san | It's a Secret Kald-san, You Hear? (Atelier Firis) [English] [Springborn]
(COMIC1☆7) [Bakunyu Fullnerson (Kokuriu)] Naisho no Oshigoto (Bakemonogatari) [Chinese] [黑条汉化]
Enoshima Sensei no Chou Zetsubouteki Zecchou Jugyou {Less Censored Version}
(C94) [MottoCompany (FLIPPER)] Senshadou Musume no Ikenai Kojin Jugyou (Girls und Panzer)
Kaoru Sensei no Tokubetsu Jugyou act2 Hikari to Kaoru
Keiko Sensei no Chijoku Jugyou - Keiko Sensei Series 4
Mystery House 2 Densha Chikan-hen & Kyoushitsu Jugyou-hen zen 20P-ban
Inkou Kyoushi Dakkou Kakugo no Kakuchou Jugyou
[Ookami Uo] (Ryuushutsu) JSJC Naisho no Jian [Chinese]
(C73) [Omoshiro Burger (Tokuda Shinnosuke)] Watashi-tachi to Papa no Kagai Jugyou Album
(CCTokyo132) [Kitei (Naoki)] Naisho Banashi (Kuroko no Basuke) [English]
(SC36) [Lezmoe! (Oyu no Kaori)] Zettai Naisho! Himitsu no Otomari nano (Mahou Shoujo Lyrical Nanoha StrikerS)
Monmon Kagai Jugyou
[Keno Yantarou] Hazukashii Kagai Jugyou | 害羞的課外授業 [Chinese]
[PLEIADES☆FORTUNE (Kaniyama Yusuke)] Natsuyasumi Hoshuu Jugyou
(HaruCC19) [Harench-noon (Inao Maasa)] Naisho Na Karada (DRAMAtical Murder)
Sensei no Himitsu Jugyou | Sensei's Secret Lesson Ch. 1-9
[FEI] Sensei no ♥ Himitsu Jugyou Ch.1-3
(C79) [Kirimochi Texture (Kyuu Yoyoyoyou)] Naisho no Milky Time (Tantei Opera Milky Holmes)
[Horihone Saizou] Naisho [ENG]
[2B (MANA-KO)] Naisho no Haruna-chan (To LOVE-Ru) [Digital]
(C90) [Mama ni wa Naisho (Plasma Beach)] Kinniku Bokujou (THE IDOLM@STER)
[Morishima Kon] Naisho No Gohoushi (COMIC Tenma 2016-04) [Chinese] [漢化組漢化組]
[Anthology] MoeStar BEAST Vol.3 [Digital]
(C85) [Chagashi Saiban (Yamabuki Mook)] Naisho no Roommate | Secret Roommate (IS <Infinite Stratos>) [English] [RapidSwitch+Life4Kaoru]