(Hanjuku Hero Life 5) [Bakusan (Mariko)] Ikenai Koto wa Naisho de Suru Mono (My Hero Academia)
(C88) [brilliant thunder (Yumeno Tanuki)] Oya ni Naisho no Iedex
[kedamono (Tori Hrami)] Naisho no Undoukai | 运动日的秘密 [Chinese] [本子社汉化] [Colorized] [Digital]
[Minamida Usuke] Dokidoki Hoshuu Jugyou (COMIC Megastore Alpha 2016-04) [Chinese] [黑条汉化]
Hokentaiiku Jisshuu Jugyou ~Onnanoko no Karada no Shikumi Hen~
(C78) [apricot (Anji, Kuroo)] Omote to Ura no Himitsu to Naisho. (Amagami)
(Puniket 12) [Soul Magic (Sudoo Kaoru)] Suki suki Aiko-chan Mayonaka no naisho (Ojamajo Doremi)
Sekaiichi Uketai Anko no Jugyou
Youkoso Paisen ~AV Joyuu no Kagai Jugyou~
(C94) [Doku Tonkotsu Niku Dorei (Tanohito)] Chika-chan ni mo Naisho no Himitsu 2 (Love Live! Sunshine!!)
[Iguchi Sentarou] Classmate to Ecchi Jugyou Ch. 1 [English] [Digital]
Hageshii Kagai Jugyou
[Konohana] Naisho no Jikan (COMIC Megastore 2009-04) [English] [AlphaYang]
Rize Sensei to Himitsu no Jugyou♪
(C89) [666PROTECT (Jingrock)] Tenkousei JK Elf -Houkago Choukyou Jugyou-
[Ohigetan] Chikan Gakushuu Shidou Youryou ~Shou 6 Gyaku Chikan Kagai Jugyou Hen~ (COMIC LO 2016-08) [English] [Striborg]
(C54) [Studio Wallaby (Kokuden Kadotake, Deep Purple '72, Leopard)] Mana no Naisho (White Album)
(C84) [Angel Bless (Tsukiji)] Kore wa Ze-ttai ni Naisho desu kara ne! (Touhou Project)
(SC49) [Baka to Hasami (Tsukai You)] Naisho no Tsuboeri Himitsu no Itsuki (Heart Catch Precure!)
[Usi] Otto ni Naisho de Ajimi Shite Ch.1-7
[Horitomo] Lamia no Tokubetsu Jugyou (Kininaru Anoko wa Monster Musume) [Chinese] [CE家族社]
(C79) [Kirimochi Texture (Kyuu Yoyoyoyou)] Naisho no Milky Time (Tantei Opera Milky Holmes)
[Dorachefu] Naisho no Zupohame Shinkon Life (ANGEL Club 2018-11) [Digital]
[Sirotateto] Naisho no Orusuban [Digital]
[Balpanther] Naisho no Undoukai (Puella Magi Madoka☆Magica)
On'na kishi no kagai katsudō (Mahou Shoujo Ikusei Keikaku
Naisho no Kagai Jugyou Nyuumonhen
[TLB] Otousan to Naisho ~Aru Daikazoku no Chichi to Musume Yuku Toshi Kuru Toshi Himehajime~
[Ameyama Telegraph (Ameyama Denshin)] Rokujou Junko no Haisetsu Kagai Jugyou [Digital]
(C94) [Critical Hit! (Zetz)] Mutsuki no Naisho (Azur Lane)
JK Yome Sakura no Inokori Jugyou
Monmon Kagai Jugyou
[GoldenGoblins (Nekokan)] Kenpeitai ni wa Naisho da yo! (Kantai Collection -KanColle-) [Digital]
(SC2017 Summer) [mocomocodo (Nukunuku Batten)] Glenn Sensei no Rokudenashi Kagai Jugyou (Rokudenashi Majutsu Koushi to Akashic Records)
[kedamono (Tori Hrami)] Naisho no Undoukai [English] {Shotachan} [Digital]
[Shinokage] Taiiku no Inokori Jugyou
(Panzer Vor! 11) [Nazunaya Honpo (7zu7)] Erika no Naisho. (Girls und Panzer)
(Kouroumu 6) [04U (Misasagi Task)] Anoko nya Naisho (Touhou Project)
[Unno Hotaru, Natsumi Chiharu, Yoshizawa Kei, Otohiko] Himitsu no Renai Jugyou 45
(COMIC1☆6) [MIX-ISM (Inui Sekihiko)] Naisho no ×××。 (Bakemonogatari)
[Guglielmo] Youkoso Paisen ~AV Joyuu no Kagai Jugyou~ (Shishunki Marudashi!) [English] [Azzei]
[Activa (SMAC)] Yomako Sensei no Tokubetsu Jugyou (Tengen Toppa Gurren Lagann) [English] {fzid4}
[SAIGA dou] Otto ni Naisho de Kozukuri Takuhai Service Oshiharai wa Teisou Hikikae
[Studio Wallaby (Deep Purple '72)] Arashi no Naisho, Aiko no Himitsu (Gad Guard)
[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. 1-3 [English] {Doujins.com}
(C81) [TIES (Takei Ooki)] Kobato no Naisho. (Boku wa Tomodachi ga Sukunai) [English] [QB Translations] [Decensored]
(Shota Scratch 25) [Yabure Kabure (Agemon)] Ogibo-san niwa Naisho desu. (Fullmetal Alchemist) [English] {Shotachan}
(C54) [Tange Kentou Club (Yokota Mamoru)] Clone Doll Kagai Jugyou / My Favorite Full Colour Gengashuu
[Keno Yantarou] Hageshii Kagai Jugyou
[Nyoroman SHouji] Mucchimuchi Keiko Sensei no Chou Nikkan Dohentai Jugyou! "Kutsujoku no Kuro Mask Hentai Dorei Kamen Kanochi Hen" (Kekko Kamen)
(SC2016 Winter) [GOD Ryokutya (Bu-chan)] Papa ni wa Naisho yo? (Brave Beats)
[Ue ni Aru Mikan (Reitou Mikan, Amulai)] Dennou Sekai ni Torawarete ~Onna Avatar de Seihoushi Jugyou, Uketemasu~[Digital]