That's a Very Instructive Lesson, Dunois-san!
(C93) [Akusei-Shinseibutsu (Nori)] Kahili Pro no Hole in One Lesson (Pokémon Sun and Moon) [English] [Doujins.com]
[Garakuta-ya (Neko Gohan)] Dr. Queenstein Last Lesson. (Uchuu Senshi Baldios) [Digital]
Night Classroom
Tropica-ona Lesson
[Granada Sky (Mogiki Hayami)] Mayonaka no Tokubetsu Lesson | Special Midnight Lesson (Go! Princess Precure) [English] {5 a.m.} [Digital]
[pink-noise (Mizuiro Megane)] 『Futanari Doutei LESSON』 no Oshirase (Kantai Collection -KanColle-) [Chinese] [沒有漢化] [Digital]
(C89) [AMEYAMA TELEGRAPH (Ameyama Denshin)] Ikaruga Noa no Idol Haisetsu Lesson (Ge)
[Hakkou Shoujo (Suzu)] Idol Sasaki Chie Warui Ko Lesson! (THE IDOLM@STER CINDERELLA GIRLS) [Digital]
Sensei's Secret Lesson Chapter 3
AV Lesson Hajimeru yo | AV授业要开始了喔♡
[FEI] Sensei's Secret Lesson Ch4
[Sasaki Mizuki] Ouchi de Lesson
Class President's Extracurricular Lesson
[Ao Banana] AV Lesson Hajimeruyo | AV授業要開始了喔 [Chinese]
[Kamitou Masaki] Manami Sensei no Kougaigakushuu Ch. 5 | Manami Sensei's Outdoor Lesson Ch. 5 [English] [hong_mei_ling]
(SC56) [Jikomanzoku (Akitsuki Itsuki)] Momoka no Momoiro Lesson (THE IDOLM@STER CINDERELLA GIRLS)
[Souko Souji] Himitsu no Umanari Tokubetsu Lesson | The Secret to Horses, Special Lesson (COMIC Tenma 2013-08) [English]
[Ao Banana] Sekusasaizu Dai Sakusen | Sexercise Grand Strategy (AV Lesson Hajimeruyo) [English]
Happy Lesson - Tanoshi
Secret Lesson
Sensei's Secret Lesson Chapter 5
(COMIC1☆10) [mon-petit (Mon-petit)] Mai Senpai no Anal Lesson (Musaigen no Phantom World)
[Riro] The Music Classroom [English Translated by Tonigobe]
Cheerful Gift Lesson
Lesson de Bui
(C73) [Otaku Beam (Ootsuka Mahiro)] [24→←14] lesson#3
[Amatarou] Futarinara Dekirukoto | Things You Can Do Together (Lesson to You) [English] [YQII]
Perfect Lesson 7 - New Generations Haisetsu Stage
(C88) [SOUND MILK (Otochichi)] Princess Sakusei Lesson (Go! Princess PreCure)
Otonatic na Kiss no Lesson
[FEI] Sensei no Himitsu Jugyou | Sensei's Secret Lesson Ch. 1-7 [English] [Lazarus H]
(COMITIA112) [A-Lucky Murashige no Ran (A-Lucky Murashige)] Special Lesson (Dungeon ni Deai o Motomeru no wa Machigatteiru Darou ka) [English] [EHCOVE]
Aibo Ingo Kyouiku | Loving Mother Dirty Talk Lesson
(C95) [FLAT (Yukyu Ponzu)] Miria-chan to Kojin Lesson | 我与赤城米莉亚的私教课 (THE iDOLM@STER CINDERELLA GIRLS) [Chinese] [黄记汉化组]
The Home Tutor's Extracurricular Lesson
Onee-san Lesson
[Ura Urethan (Akari Seisuke)] Sendou-kun no Asaon Lesson (Cardfight!! Vanguard) [Digital]
(C88) [S Jikousaten (Seri Tsumi)] Kashikoma! Lesson GO! (PriPara)
[Kamitou Masaki] Manami Sensei no Kougaigakushuu Ch. 2 | Manami Sensei's Outdoor Lesson Ch. 2 [English] [hong_mei_ling]
Mama-san Volleyball Secret Lesson 1-2 Decensored
Muhouchitai no Arukikata Lesson 2 "Seikou Houshuu"
[Gun Ryuusei] Onna Kyoushi Chijoku no Lesson
Honey Lesson
A PHYSICAL CLASSROOM 2 Manhwa
A Lesson Learned [English] [Rewrite] [jespins]
(COMIC1☆14) [Moe Hime Rengou (xin, obiwan)] FGO Carnival 19 - Kyuukyoku no C.C.C. Namaiki Kouhai-chan to Nama Lesson (Fate/Grand Order) [Chinese] [三日月TS私人漢化翻譯]
[FEI] Kyuuketsu Jokyoushi no Kenzoku Seikatsu ~Lesson with Vampire~ [Chinese]
(Love Song ☆ Lesson ♪ 4th) [amhn (nae)] Tatoeba Ore ga Onnanoko Demo (Uta no Prince-sama)
Akane-san no Yokodori Lesson
[Minazuki Juuzou] Houkago no Kyoushitsu de Rankou Suru Inran JS nante Iru Hazu ga Nai! | An Elementary School Nympho Having Orgies After School In The Classroom?! She Just Can't Exist! (COMIC LO 2019-01) [Digital] [English] [gustmonk]
(Shuuki Reitaisai) [Kitsune to Budou (Kurona)] Kosuzu-chan to Mamizou-san no Dokidoki Fudeoroshi Lesson (Touhou Project) [Chinese] [脸肿汉化组]
(C88) [life (Haga Yui)] Chou Jissenteki Princess Lesson | Super Pragmatic Princess Lesson (Go! Princess Precure) [English] {5 a.m.}
[Hanzaki Jirou] Ukiuki Gohoubi Lesson Chuuhen | Cheerful Gift Lesson Part 2 (Love Love Rumble) [English] [CGrascal]
Melty♡Lesson
(C89) [Koppun (Hone)] Go! MinaKira Princess Lesson! (Go! Princess PreCure)
Scathach Shishou no Dosukebe Lesson | Lewd Lessons With Teacher Scathach
(C92) [Roshiman (Arimura Ario)] Muhouchitai no Arukikata Lesson 2 "Seikou Houshuu" (Dragon Quest III)
(C87) [Santonana (Satou Tomoyuki)] Love Lesson! (Love Live!)