[Minor Boy] Keiko Sensei no Chijoku Jugyou
(COMIC1☆9) [Shiratamaco (Shiratama)] Naisho no Passion - The Secret Passion (Pripara) [Chinese] [CE家族社]
[Maekawa Hayato] Onee-chan Sensei no Himitsu Jugyou
(COMIC1☆5) [Mama ni wa Naisho (Purukogi Beach)] GIGANTIC DIVA (King of Fighers)
(C88) [MAPLER (Maple)] Tomodachi ni mo Naisho no Koto
[Kanzaki Shirou] Yume no Kuni no Naisho Banashi
(COMIC1☆8) [TriaL3 (Various)] Naisho no Imouto Ecchi
[Vitamin Gohan (Hasegawa Keita)] Naisho no Sakuya-san | 不为人知的咲夜 (Touhou Project) [Chinese] [sismvg英渣汉化] [Digital]
[Watanabe Wataru] Minako Sensei Saigo no Bakunyuu Jugyou [Digital]
(COMIC1☆9) [Shiratamaco (Shiratama)] Naisho no Passion - The Secret Passion (PriPara)
[Koari] Naisho no Hokenshitsu (Seifuku Musou Houkago Tokubetsu Koushuu Hen) [Decensored]
Tenshi no Kagai Jugyou Ch. 3
[MoonRevenge (Miyuma Subaru)] Futari no Naisho
(C91) [conezu step!+Ziggurat (Suzuki Akoni)] JK Yome Sakura no Inokori Jugyou [English] [H-Konbini]
[Sasamori Tomoe] Yuutousei ni Hitsuyou na Jugyou | A Class an Honor Student Needs (COMIC HOTMiLK 2014-05) [English] [Facedesk]
[Itou Nanami] Naisho no Houkago (COMIC Potpourri Club 2014-07) [Chinese] [黑条汉化]
(Shotaket 11) [Sorairo March (Narusawa Sora)] SECRET FILE (Naisho no Yorimichi)
(COMIC1☆7) [Aroma Gaeru (Numahana)] Hamon Kyoushi no Setekina Jugyou (JoJo's Bizarre Adventure)
(C88) [H-SQUAD (Guglielmo)] Zenra de Suiei no Jugyou!! | Naked Swimming Class!! [English] =LWB= [Colorized] [Decensored]
Onna Kishi no Kagai Katsudou
[FEI] Sensei no ♥ Himitsu Jugyou Ch. 1-8
(C88) [H-SQUAD (Guglielmo)] Zenra de Suiei no Jugyou!!
[Anagura (Usa)] Reika-san no Tokubetsu Jugyou (Smile Precure!) [Digital]
[Pin-13 (Juusangatsu)] Futari no Naisho (Kizuato) [Digital]
(SC15) [Chuuni+OUT OF SIGHT (Kim Chii)] Onee-chan to Naisho 2 Ashita Biyori
[Beater (daikung)] 體育課夭壽讚!Taiiku Jugyou wa Saikou daze! [Chinese] [Digital]
(Kouroumu 6) [04U (Misasagi Task)] Anoko nya Naisho (Touhou Project) [English] [KageSennin]
[Keno Yantarou] Hageshii Kagai Jugyou [Chinese]
Himitsu no Kagai Jugyou
(C88) [Nachtzug (eko)] Ofuro de Naisho (Kantai Collection -KanColle-)
(C90) [Death Para (Tamaki Kurou)] Kitakami-san to Ooicchi Naisho no Naisho (Kantai Collection -KanColle-)
(C90) [Raijinkai (Haruki Genia)] Naisho no Kagai Jugyou (NEW HORIZON) [Chinese] [CE家族社]
Kagai Choukyou
(CiNDERELLA ☆ STAGE 6 STEP) [Rokata Aruki (Akino Komichi)] Naisho no Ohanashi o (THE IDOLM@STER CINDERELLA GIRLS)
[Maruta] Boku to Kanojo no Hikakuteki Naisho no Nichijou Conclusion (English)
[Sangatsu Usagi] Naisho no Teatime - The Secret Teatime
(C81) [TIES (Takei Ooki)] Kobato no Naisho. (Boku wa Tomodachi ga Sukunai)
Taiiku Kyoushi 2 ~Bokura no Kagai Jugyou~
Daitai Tadashii Sensei no Jugyou
[Kitani Sai] Himitsu Jugyou
Rean Kyoukan no Tokubetsu Kagai Jugyou
[Gekkou Tei (Seres Ryu)] Chiron Sensei no Seikou Jugyou (Fate/Grand Order) [Digital]
Yankee Musume o Ecchi de Kousei!? ~Jugyou de Ijirare Shitagi ga Gusshori~ 1
(C92) [Macaron*Sketch (Yukatama)] Naisho no Cappuccino (Gochuumon wa Usagi desu ka?)
(C62) [SimaSima System, Nagisawaya (Nagisawa You)] Sakura no Naisho Kawara Ban Sono 4 (Cardcaptor Sakura)
[Ika Client] Girotin Konsoku Hoken no Jugyou
Classmate to Ecchi Jugyou Ch. 5
[Misao.] Minamo no Naisho | Minamo's Secret (Hajimete Janai yo?) [English] [Rin]
(C91) [moriQ (Mori Airi)] Rem to Naisho na Koto Shimasen ka? (Re:Zero kara Hajimeru Isekai Seikatsu)
(Bokura no Love Live! 17) [Doku Tonkotsu Niku Dorei (Tanohito)] Chika-chan ni mo Naisho no Himitsu (Love Live! Sunshine!!)
[Yuzu Ramune] Yankee Musume o Ecchi de Kousei!? ~Jugyou de Ijirare Shitagi ga Gusshori~ 1
[Iguchi Sentarou] Classmate to Ecchi Jugyou 7 [Digital]
(C85) [Ishikawa Pro (Ishikawa Naoya)] Kuttsukiboshi -Naisho no Oshigoto- (Kuttsukiboshi)
[Kiki] Inran Jugyou
(COMIC1)[Alpha to Yukaina Nakamatachi] Naisho no Oshioki (Quiz Magic Academy)
[Majo Saiban (Mion_orz)] Naisho no Omajinai [Digital]
(ComicLive in Nagoya) [Konekopan (rie)] Naisho no Mashimaro Heart! (Ensemble Stars!)
[Fuusen Club] Okaa-san wa DeliHeal-jou ~Musuko no Doukyuusei to Naisho de Tanetsuke SEX~ [Digital]
[Mitsuba Minoru] Sakurako Sensei no Tokubetsu Jugyou (COMIC ExE 07) [Chinese] [黑条汉化] [Digital]
[MIKARIN] Okaasan ni Naisho
(C94) [MottoCompany (FLIPPER)] Senshadou Musume no Ikenai Kojin Jugyou (Girls und Panzer)
[Keno Yantarou] Gaman Dekinai Kagai Jugyou
[Ookami Uo] Yuutousei | The Honor Student ([Ryuushutsu] JSJC Naisho no Jian) [English]
(C89) [Jagabata (Oimo)] Naisho no Futarikiri (PriPara) [English] {/u/ scanlations}
[Oozora Kaiko] Papa ni wa Naisho no Boshi no Fureai
[Usi] Otto ni Naisho de Ajimi Shite 1
[Unknown (Unknown)] Taiiku Kyoushi 2 ~Bokura no Kagai Jugyou~
(Gakuen Trial 1.5 Kagai Jugyou) [ZCC (Zakiko)] Hi ga Kurete (Super Danganronpa 2)
Bijutsu Jugyou Dessin Model
(C90) [Brilliant Thunder (Yumeno Tanuki)] Oya ni Naisho no Umi no Iedex
[Teruki Kuma] Naisho da yo
[Murasame Maru] Ninpara ~Botehara XXgakusei no Tokubetsu Jugyou~ | Ninpara ~Preggo Elementary Schooler's Special Lession~ [English] [ATF]
[usi] Otto ni Naisho de Ajimi Shite 2 [Digital]
(C90) [Raijinkai (Haruki Genia)] Naisho no Kagai Jugyou (NEW HORIZON)
[Chinzuriina] Sensei to Kotzukuri LOVE Jugyou (Otokonoko Heaven Vol. 11) [English] {Mysterymeat3}
(C91) [CHARAN PORAN (Nekono Matatabi)] Naisho no Rehearsal (THE IDOLM@STER CINDERELLA GIRLS)
Hokenshitsu de Jugyou Chu! | Class in the Nurse's Office!
(COMIC1☆8) [Atelier Lunette (Mikuni Atsuko)] Naisho Nano! -Haruhara-ke San Shimai Monogatari- [English]
(C74) [Naruho-dou (Naruhodo)] Sekai Ichi Uke Tai Anko no Jugyou (Naruto) [English] {doujin-moe.com}
[Garakuta Shoujo (Miito Shido)] Kanojo wa Chou Yuumei Geinoujin... Soshite Boku ni Naisho de AV Joyuu Satomi-Satona Gojitsudan 1 [Digital]
Taiiku no Inokori Jugyou
Hinata to Yui no Kagai Jugyou
(C78) [apricot (Anji, Kuroo)] Omote to Ura no Himitsu to Naisho. (Amagami) [English] [magiclamp]
(C72) [MURDERHOUSE (Workaholic)] Boku to Mama no Naisho (Keroro Gunsou)
Keiko Sensei no Chijoku Jugyou
(C90) [conezu step!+Ziggurat (Suzuki Akoni)] JK Yome Sakura no Yagai Jugyou [Chinese] [無邪気漢化組]
[kedamono (Tori Hrami)] Naisho no Undoukai [English] {Shotachan} [Colorized] [Digital]
[Egawa Hiromi] Naisho ni Shitene - Please keep secret
[Oozora Kaiko (Kaiko)] Papa ni wa Naisho no Boshi no Fureai [Chinese] [某三人汉化组]
[Sasahara Yuuki] Naisho no Happyoukai. - A Secret Recital [Digital]
[Morishima Kon] Naisho no Gohoushi (Oneshota Dish) [English] [Kusojiji] [Digital]
(C86) [Go-Go-Merry-Go-Round (Kasai Ema)] Naisho no Natsuyasumi. (Neon Genesis Evangelion) [English] [CGrascal]
(C89) [666PROTECT (Jingrock)] Tenkousei JK Elf -Houkago Choukyou Jugyou- | High School Elven Transfer Student -After School Sex Training Lessons- [English] [Tremalkinger]
Chakui Shasei no Susume Sensei no Kagai Jugyou
[Mitarashi Kousei] Seikou Jugyou (teaching sex)
(C74) [Naruho-dou (Naruhodo)] Sekaiichi Uketai Anko no Jugyou (NARUTO)
Ninshin Inokori Jugyou
Inkou Kyoushi Dakkou Kakugo no Kakuchou Jugyou
(SC36) [from SCRATCH (Johnny)] SECRET LESSON ~Nanoha-sensei no Tokubetsu Jugyou~ (Mahou Shoujo Lyrical Nanoha) [Digital]
[Oohashiya (Oohashi Hikaru)] 3-nen A-gumi Kagai Jugyou (Mahou Sensei Negima!)
(COMIC1☆6) [Mama ni wa Naisho (Purukogi Beach)] Tetsu Momo MANEATER (Tekken)