(COMIC1☆9) [Shiratamaco (Shiratama)] Naisho no Passion - The Secret Passion (Pripara) [Chinese] [CE家族社]
[MoonRevenge (Miyuma Subaru)] Futari no Naisho
(C94) [Kitsuneya (Leafy)] Chibikko Eirei to Naisho no Okusuri Techou - Young lady hero secret medicine notebook (Fate/Grand Order)
Abunai Kojin Jugyou
(C56) [Studio Wallaby (Deep Purple '72, Meguro Sankichi)] Jubei-chan no Naisho (Jubei-chan)
[Higashimidou Hisagi] Momozono Gakuensei Kagaku Jugyou Houkago Fuck - After School Fuck [English] {doujins.com}
(SC24) [Naisho No Usagi Koya (Usakun)] Gohoubi Suimingu
(Futaket 4) [Domestic animals (Murasame Maru)] Yan Sensei no Tokubetsu Jugyou
[Koutarou] Ritsuko-Sensei no Kojin Jugyou | Big Breasts Teacher, Children's Virginity Hunting Expert. (COMIC Bazooka 2011-12) [English]
[Morishima Kon] Naisho No Gohoushi (COMIC Tenma 2016-04) [Chinese] [漢化組漢化組]
(C76) [7 Men Zippo (Kamishima Akira)] Hokenshitsu de Jugyou Chu! | Class in the Nurse's Office! (Katekyo Hitman REBORN!) [English] [Lady Phantomhive]
[Shunjou Shuusuke] Naisho no Jouji | Secret Affair (Osaekirenai kono Kimochi) [English] {doujin-moe.us}
[FEI] Sensei no Himitsu Jugyou | Sensei's Secret Lesson Ch. 1-7 [English] [Lazarus H]
[FEI] Sensei no Himitsu Jugyou | Sensei's Secret Lesson Ch. 1-6 [English] [Lazarus H]
[Natsume Benkei] Nichijou-teki ni Okaa-san ni Dasu Seikatsu - Otou-san ni Naisho no Nakadashi Ecchi Hen
[Ponsuke] Naisho no Kaihou (COMIC LO 2017-12) [Chinese] [柳葉個人漢化] [Digital]
[Hamasei (Tetsukui)] Houman Juku Koushi ~Kojin Juku no Oppai Sensei to Inwai Jugyou~
[Garakuta Shoujo (Miito Shido)] Kanojo wa Chou Yuumei Geinoujin... Soshite Boku ni Naisho de AV Joyuu Satomi-Satona Gojitsudan 2
(SUPER13) [Aireal, Teruo Haruo (Fuka, Kanekiyo Miwa)] Kagai Jugyou - Extracurricular Lesson (Yu-Gi-Oh!)
(Kouroumu 6) [04U (Misasagi Task)] Anoko nya Naisho (Touhou Project) [English] [KageSennin]
(Senka no Toki) [Syupa! (makiron)] Naisho no Uchiban | 祕密的內番 (Touken Ranbu) [Chinese] [月下鹤吟汉化组]
(C71) [Pyonpyororin (Akoko.)] Ano... Naisho ni shite kudasai ne? (Suzumiya Haruhi no Yuuutsu) [English]
Inkou Kyoushi Dakkou Kakugo no Kakuchou Jugyou
[Asai Kikaku (Satou Masa)] Suki Suki! Bokura no Mucchiri Ona-Hole Sensei! Zenryoku Nakadashi Kojin Jugyou [Digital]
[Konohana] Naisho no Jikan (COMIC Megastore 2009-04) [Chinese]
(C91) [CHARAN PORAN (Nekono Matatabi)] Naisho no Rehearsal (THE IDOLM@STER CINDERELLA GIRLS) [Chinese] [一匙咖啡豆汉化组]
[Itou Nanami] Naisho no Houkago (COMIC Potpourri Club 2014-07) [Chinese] [黑条汉化]
(C92) [Tatsumaki Koutei (Takei Tsukasa)] Mifune-san to Umi de Naisho no (THE IDOLM@STER CINDERELLA GIRLS)
Hokentaiiku Jisshuu Jugyou ~Onnanoko no Karada no Shikumi Hen~
(C81) [TIES (Takei Ooki)] Kobato no Naisho. (Boku wa Tomodachi ga Sukunai) [English] [QB Translations] [Decensored]
(C88) [Sweet Candle (Sakuraizumi Yuu)] Naisho no Asobi (THE iDOLM@STER CINDERELLA GIRLS)
[Studio Wallaby (Various)] Tron no Naisho (Mega Man Legends)
Himitsu no Kagai Jugyou
(Reitaisai 9) [Hannama (Soine)] Kasen-chan Jugyou desuyo (Touhou Project)
(C93) [Brilliant Thunder (Yumeno Tanuki)] Oya ni Naisho no Iedex 6 - Dekichatta Hen [Chinese] [脸肿汉化组]
Mama ni Naisho Mama to Naisho
[Seina] Saisho no, Naisho no. + Natsunokedamono [Raw]
Yankee Musume o Ecchi de Kousei!? ~Jugyou de Ijirare Shitagi ga Gusshori~ 1
[Human High-Light Film (Nise Tsuruta Hirohisa)] Honey no Naisho (Cutey Honey)
(C94) [Kaiteinnu (Rajunnu)] Mary ni wa Naisho desu! (Fate/Grand Order)
(C84) [ROMEO DASH (Kitto Shibaru)] Naisho desuyo, Reimu-san! (Touhou Project)
Rokujou Junko no Haisetsu Kagai Jugyou
(COMIC1☆7) [Aroma Gaeru (Numahana)] Hamon Kyoushi no Setekina Jugyou | Sexual Lessons of the Ripple Teacher (JoJo's Bizarre Adventure) [English] {doujin-moe.us}
[Kitani Sai] Himitsu Jugyou
[Pin-13 (Juusangatsu)] Futari no Naisho (Kizuato) [Digital]
[Q] Kagai Lesson (Fujouri na Nyotai Kousoku) [Chinese] [村长个人汉化] [Digital]
(SC2017 Winter) [TwinBox (Hanahanamaki, Sousouman)] Kouen no Naisho na Koto (Kantai Collection -KanColle-) [Chinese] [花火汉化组]
Jugyou ni Kyousei Rape Time ga Dounyuu Saremashita ~ Suki na Ko wo Hame Houdai! Kyousei Hame Jikan Start!
(C94) [Aimaitei (Aimaitei Umami)] Futanari Osananajimi to Ore to Hajimete no Gyaku Anal Kagai Jugyou 丨扶她青梅竹馬和我第一次的反向小穴做愛課外授課 [Chinese] [沒有漢化]
[Iguchi Sentarou] Classmate to Ecchi Jugyou Ch.1 [Chinese]
[BIG BOSS] Ichioku Sou Gyokusai╱Souko Sensei no Hachimitsu Jugyou (Rikujou Boueitai Mao-chan, Asagiri no Miko)
[Torajima-shi Kouhouka (Torajimaneko)] Builder to Fighter no Naisho Banashi (Gundam Build Fighters) [Chinese] [黑夜汉化组] [Digital]
(C76) [Human High-Light Film (Shiosaba)] Naisho no Honey 2 (Cutey Honey)
[Gyuunyuu Rinda] Minami Sensei no Tadashii Seikyouiku Jugyou
(C95) [horonaminZ (horonamin)] Ochikobore Succubus to Sex Hoshuu Jugyou
(C88) [MAPLER (Maple)] Tomodachi ni mo Naisho no Koto
Classmate to Ecchi Jugyou Ch. 11
Kyou mo Mata Katei Kyoushi ga Kite Kyousei Mesu Ochi Saimin Jugyou o Suru Hi
(C93) [ParadiseGom (Gorgonzola)] Naisho no Ohime-sama (Dragon Quest XI)
Classmate to Ecchi Jugyou Ch.1
[Aimaitei (Aimaitei Umami)] Futanari Osananajimi to Ore to Hajimete no Gyaku Anal Kagai Jugyou | Me and My Futanari Childhood Friend's First Extracurricular Lesson in Reverse Anal [English] [JasmineTea] [Digital]
(C89) [brilliant thunder (Yumeno Tanuki)] Oya ni Naisho no Iedex - Toshikoshi-hen [Chinese] [肥宅除夕依舊只能看著衛生紙上的殘渣翻譯]
(C93) [J.D.World (Fumi Miyabi)] Onee-san ni wa Naisho ne (Kantai Collection -KanColle-)
[Chinzuriina] Sensei to Kotzukuri LOVE Jugyou (Otokonoko Heaven Vol. 11) [English] {Mysterymeat3}
[Coffee Maker (Asamine Tel)] Naisho desu yo (Fate/Grand Order) [Digital]
[Koshou Shoushou] Kagai Jugyo ha Houkago ni
[Kuronisiki (Takaharu)] Onee-sama-tachi niwa Naisho de Senkan ni Narimasu (Kantai Collection -KanColle-) [Chinese] [koolo個人漢化] [Digital]
Asahina Mikuru-sensei no Tokubetsu Jugyou
Classmate to Ecchi Jugyou Ch. 7
[Jingrock] Kokuhaku | Confession (Shougakusei Koukan Jugyou) [English] [Yoroshii]
Oshiete! Kaga-sensei ~Hajimete no Niana Jugyou~
(C92) [Tenrake Chaya (Ahru.)] Matsurinoyoru no Naisho (Kantai Collection -KanColle-)
(C78) [apricot (Anji, Kuroo)] Omote to Ura no Himitsu to Naisho. (Amagami)
(C54) [Studio Wallaby (Various)] VITAMIN-B5 1/2 Ruri Ruri Naisho no Arbeit Nikki (Martian Successor Nadesico)
[Minamida Usuke] Dokidoki Hoshuu Jugyou (COMIC Megastore Alpha 2016-04) [Chinese] [黑条汉化]
Monmon Kagai Jugyou
Gaman Dekinai Kagai Jugyou Ch. 1-9
[Minor Boy] Keiko Sensei no Kagai Jugyou - Keiko Sensei Series 1
(C62) [Studio Wallaby (Deep Purple '72)] Naisho no Azumanga (Azumanga Daioh)
[Q] Kagai Lesson (Fujouri na Nyotai Kousoku) [Digital]
(C73)[Alpha to Yukaina Nakamatachi] Naisho no Trap (Quiz Magic Academy)
(C81) [CIRCLE ENERGY (Shin Shunkashuutou)] Sister Maria Sensei no Hachimitsu Jugyou (Boku wa Tomodachi ga Sukunai) [Digital]
(C89) [Jagabata (Oimo)] Naisho no Futarikiri (PriPara) [English] {/u/ scanlations}
[Minor Boy] Keiko Sensei no Chijoku Jugyou
[usi] Otto ni Naisho de Ajimi Shite 2 [Digital]
[Shunjou Shuusuke] Kojin Jugyou | Private Lesson (COMIC MUJIN 2012-08) [English] [darknight]
(C90) [Raijinkai (Haruki Genia)] Naisho no Kagai Jugyou (NEW HORIZON) [English] {Hennojin}
(C79) [Kirimochi Texture (Kyuu Yoyoyoyou)] Naisho no Milky Time (Tantei Opera Milky Holmes)
(C89) [Tatsumaki Koutei (Takei Tsukasa)] Lecia no Naisho Naisho no Chitsujo (Granblue Fantasy) [English] {Hennojin}
[Keno Yantarou] Tanoshii Kagai Jugyou
(C90) [Kaminari-neko (Eitarou)] Miho to Anzu no Naisho no Himegoto (Girls und Panzer) [English] [/u/ scanlations]
Naisho no Kagai Jugyou Ouyou Hen
[Iguchi Sentarou] Classmate to Ecchi Jugyou 7 [Digital]
Glenn Sensei no Rokudenashi Kagai Jugyou
(C91) [Fujiya (Nectar)] Naisho na Shinomiya-san | The Secretive Shinomiya-san [English] {Hennojin}
(Kouroumu 6) [04U (Misasagi Task)] Anoko nya Naisho (Touhou Project)
[Boss Chin (Esecool)] Naisho no Ota x Bitch (COMIC Shingeki 2012-10)
(COMIC1☆4) [Human High-Light Film (Shiosaba!)] Naisho no Makinami (Rebuild of Evangelion) [English]
Hoshuu Jugyou bu Seikatsu Kiroku | 补习授业部性爱记录
[Sasahara Yuuki] Naisho no Happyoukai. - A Secret Recital [Digital]
(C92) [666PROTECT (Jingrock)] Tenkousei JK Elf 3 -Houkago Yagai Jugyou- | High School Elven Transfer Student -After School Outdoor Lessons- [English] [Tremalkinger]
Kagai Katsudou
[Nico Pun Nise] Tenshi no Kagai Jugyou [English] [Brolen]
Kaoru Sensei no Tokubetsu Jugyou act2 Hikari to Kaoru
(C72) [MURDERHOUSE (Workaholic)] Boku to Mama no Naisho (Keroro Gunsou)
(C79) [Human High-light Film (Shiosaba)] Naisho no Ayanami (Neon Genesis Evangelion) [English] [CGrascal]
Tenshi no Houkago Jugyou Chapter 2
[Hasemi box (Hasemi Ryo)] Futari to Shota no Naisho Graffiti (Koufuku Graffiti)
(C94) [Service Heaven (Azukiko)] Kawakami Sensei to Futaba no Himitsu Kojin Jugyou (Persona 5)
(C82) [MINT BLUE (MOYURU/n)] ORE×YOME 06 - Naisho no Azu Cat (K-ON!)
[N2jirai (Nimu)] Tsukihi-chan ni wa Naisho de (Nisemonogatari) [Digital]
[SAIGA dou] Otto ni Naisho de Kozukuri Takuhai Service Oshiharai wa Teisou Hikikae [Chinese] [想吸大尾巴个人汉化]
[Maekawa Hayato] Onee-chan Sensei no Himitsu Jugyou [Chinese] [篆儀通文書坊漢化]
[Iguchi Sentarou] Classmate to Ecchi Jugyou 1~3[Digital]
Shiroki senkō howaitopansā ~ haiboku kagai jugyō ~
(SUPER23) [Dogfes (sio)] Kagai Jugyou (Ansatsu Kyoushitsu)
[Kamiya Ogawa] Mama ni Naisho Mama to Naisho (COMIC Penguin Club Sanzokuban 2018-11) [Digital]
(C90) [conezu step!+Ziggurat (Suzuki Akoni)] JK Yome Sakura no Yagai Jugyou [English] [H-Konbini]
[Shouji Ayumu] Naisho desu yo | It's a secret! (Chiccha-na Onaka) [English] [Rin]
[Hiyashi Asia (Agurecchi)] Lunasa Onee-chan no Naisho no Bansoukai (Touhou Project) [Digital]
(C91) [CHARAN PORAN (Nekono Matatabi)] Naisho no Rehearsal (THE IDOLM@STER CINDERELLA GIRLS) [English]
(C90) [H-SQUAD (Guglielmo)] Hokentaiiku Jisshuu Jugyou ~Onnanoko no Karada no Shikumi Hen~
[Kasuga, Shin] Hadakanbo Kyouiku - JK mo Oppai Marudashi!? Sukoyaka Zenra Jugyou 2
[Kaitou Yuuhi] Naisho no Oshigoto (Otokonoko HEAVEN Vol. 24) [Chinese] [夜願漢化]
(C88) [brilliant thunder (Yumeno Tanuki, Fue)] Oya ni Naisho no Iedex
Kagai Jugyou Netsu Shisen
(COMIC1☆4) [TRIP SPIDER (niwacho)] Naisho no Omamagoto (Fate/Hollow Ataraxia) [English] [desudesu]
[Hirose Miho] Himitsu no Kagai Jugyou
Classmate to Ecchi Jugyou 8
[Usi] Otto ni Naisho de Ajimi Shite Ch.1-5
[Ue ni Aru Mikan (Reitou Mikan, Amulai)] Dennou Sekai ni Torawarete ~Onna Avatar de Seihoushi Jugyou, Uketemasu~[Digital]
[Ginto] Ure Niku Neburi Gakuenchou to Boku no Ero Hon Kagai Jugyou
[Fuusen Club] Okaa-san wa DeliHeal-jou ~Musuko no Doukyuusei to Naisho de Tanetsuke SEX~ [Digital]