[Katuraya (Takemaru)] Naisho no Ichiban Kuji (Mahou Shoujo Lyrical Nanoha)
(Futaba Gakuensai 9) [Sekai Saiko (Mesopotamian Civ)] Naisho no Tsuinteruzu
[Maekawa Hayato] Onee-chan Sensei no Himitsu Jugyou
[Murasame Maru] Ninpara ~Botehara XXgakusei no Tokubetsu Jugyou~
(C89) [Jagabata (Oimo)] Naisho no Futarikiri (PriPara)
Girotin Konsoku Hoken no Jugyou
(C90) [Brilliant Thunder (Yumeno Tanuki)] Oya ni Naisho no Umi no Iedex
Tokubetsu Jugyou Shiyou! Kashima-chan!
(CiNDERELLA ☆ STAGE 6 STEP) [Rokata Aruki (Akino Komichi)] Naisho no Ohanashi o (THE IDOLM@STER CINDERELLA GIRLS)
Inkou Kyoushi Dakkou Kakugo no Kakuchou Jugyou
[Kaitou Yuuhi] Naisho no Oshigoto (Otokonoko HEAVEN Vol. 24) [English] [mysterymeat3]
[Shouji Ayumu] Naisho desu yo | It's a secret! (Chiccha-na Onaka) [English] [Rin]
Zenra de Suiei no Jugyou!!
Keiko Sensei no Chijoku Jugyou
(C88) [Decoppachi (Hidiri Rei)] Naisho no IV Satsuei-kai (THE IDOLM@STER MILLION LIVE!)
[Babymaker (Beco)] Naisho no Kozukuri 2 | Secret Lovechild 2 [English] [MintVoid]
[Keno Yantarou] Abunai Kagai Jugyou
(C88) [THE FLYERS (Naruse Mamoru)] Maekawa-san to Naisho no XX (THE IDOLM@STER CINDERELLA GIRLS)
[Hanpera] Katei Kyoushi no Kagai Jugyou | The Home Tutor's Extracurricular Lesson (Ane Chichi) [English] [ultimaflaral]
[Fireball Products] Seki Sensei No Kagai Jisshuu Ver1.5
[Anagura (Usa)] Reika-san no Tokubetsu Jugyou (Smile Precure!) [Digital]
(C91) [Utaneya (Shion)] Naisho no Djeeta Onee-chan (Granblue Fantasy)
[Sasamori Tomoe] Yuutousei ni Hitsuyou na Jugyou | A Class an Honor Student Needs (COMIC HOTMiLK 2014-05) [English] [Facedesk]
Kobetsu Hoshuu Jugyou Ajitani Hifumi Hen
※Hoshuu Jugyou desu.
(C81) [TIES (Takei Ooki)] Kobato no Naisho. (Boku wa Tomodachi ga Sukunai) [Decensored]
(C94) [Teraoka Digital Works (Endou Tatsumi)] Izayoi Sakuya Sensei no Dosukebe Koukai Jugyou in Terakoya (Touhou Project)
[Rakko] Papa ni wa Naisho! | Keep It A Secret From Daddy! (Murikuri) [English] [desudesu]
[Usi] Otto ni Naisho de Ajimi Shite Ch.1-5
[Melancolic Hyodo] Hoken no Tokubetsu Jugyou
[Kasuga, Shin] Hadakanbo Kyouiku - JK mo Oppai Marudashi!? Sukoyaka Zenra Jugyou 2
Classmate to Ecchi Jugyou Ch. 6
(C88) [Gadget (Chobariki Mitsuo)] Naisho no Beit no Susume (Yama no Susume)
[Agata] Naisho no Kakurenbo (COMIC Megamilk Vol.18)
(Puniket 12) [Soul Magic (Sudoo Kaoru)] Suki suki Aiko-chan Mayonaka no naisho (Ojamajo Doremi)
[Usi] Otto ni Naisho de Ajimi Shite 1
[Keno Yantarou] Hazukashii Kagai Jugyou | 害羞的課外授業 [Chinese]
[Ginto] Ure Niku Neburi Gakuenchou to Boku no Ero Hon Kagai Jugyou
(CINDERELLA FESTIV@L) [Aozora Shoujo (Shirane Taito)] Naisho no Gao Gao Ecchi (THE IDOLM@STER CINDERELLA GIRLS)
(C93) [ParadiseGom (Gorgonzola)] Naisho no Ohime-sama (Dragon Quest XI)
Tenshi no Houkago Jugyou Chapter 3
[Natsume Benkei] Nichijou-teki ni Okaa-san ni Dasu Seikatsu - Otou-san ni Naisho no Nakadashi Ecchi Hen
(Futaket 4) [Domestic animals (Murasame Maru)] Yan-sensei no Tokubetsu Jugyou [English] =SW & Ero Manga Girls=
[Ue ni Aru Mikan (Reitou Mikan, Amulai)] Dennou Sekai ni Torawarete ~Onna Avatar de Seihoushi Jugyou, Uketemasu~ [Chinese] [脸肿汉化组] [Digital]
[Irotsuki Sakari] Kanjiru Kagai Jugyou
(C91) [moriQ (Mori Airi)] Rem to Naisho na Koto Shimasen ka? (Re:Zero kara Hajimeru Isekai Seikatsu)
[Watanabe Wataru] Naisho ni Shite ne
[Shindou] Naisho no Yurine-san | Yurine's Secret (COMIC ExE 02) [Chinese] [我尻故我在個人漢化]
(C78) [Studio Wallaby (Haruhonya)] Onee-chan Sensei Zenbu to Hoshuu Jugyou
[Nico Pun Nise] Tenshi no Kagai Jugyou [English] [Brolen]
(C85) [Majimadou (Matou)] Enoshima-sensei no Chou Zetsubou-teki Zecchou Jugyou (Danganronpa)
Kyou mo Mata Katei Kyoushi ga Kite Kyousei Mesu Ochi Saimin Jugyou o Suru Hi