DUAL:ENGINES
(C72) [Akai Marlboro (Aka Marl)] Ore ga Fate ni Love Lesson (Mahou Shoujo Lyrical Nanoha)
[Anthology] Ojousama Anthology
(Shuuki Reitaisai) [Kitsune to Budou (Kurona)] Kosuzu-chan to Mamizou-san no Dokidoki Fudeoroshi Lesson | Heart-throbbing virginity loss lesson with Kosuzu-chan and Mamizou-san (Touhou Project) [English] [cazzeggione]
(COMIC1☆10) [Ninokoya (Ninoko)] BiBi Lesson (Love Live!)
COMIC Penguin Club Sanzokuban 2015-08
(C77) [Desuno!! (Fuyuwa Kotatsu)] Touhou Boss Rush!! (Touhou Project)
[10wadaxx (Towadako)] Shokushu Kotatsu to Platonic Boy [Digital]
[Goban] Oshiri no Lesson (COMIC Penguin Celeb 2010-08)
(C76) [Kohaneto] Magical Lesson (Quiz Magic Academy)
Odoru Shokushu Kenkyuujo. Shokushu Kotatsu
(Bokura no Love Live! Shinnenkai 2017) [Shobocon (Kitamura Tooru)] Kotatsu Rhapsody (Love Live!)[Chinese][新桥月白日语社]
(C93) [Takeya (Taketora Suzume)] Kuroshio -Fuyu no Kotatsu Hen- (Kantai Collection -KanColle-)
(C92) [Otukimi Koubo (Akizora Momidi)] Mash to Himitsu no Tokkun | Mash's Secret Private Lesson (Fate/Grand Order) [English] [Saint Quartz Scans]
COMIC Penguin Club 2019-11
[FEI] Sensei no Himitsu Jugyou | Sensei's Secret Lesson Ch. 1-8 [English] [Lazarus H]
(CT24) [Cannabis, Mine Noujou (Shimaji, Mine Mura)] Wolf Sheep Lesson (THE iDOLM@STER SideM) [Chinese] [无毒汉化组]
[Ukikotatsu] Nagasare Sensei
Chigau kedo Chigawanai?
[Haraita] Akane-san no Yokodori Lesson | Akane-san's Stealing Lesson (2D Comic Magazine Ero Bitch ni Netorareta Otoko-tachi Vol. 2) [English] [Panatical] [Digital]
Korette Lucky Sukeberarette Level nano!?
(Fata Grande Kikuusai 2) [Ichinose (Ichinose Land)] Okota de Mofumofu | Fluffing in the Kotatsu (Granblue Fantasy) [English] [Aoitenshi]
Kashima in the Kotatsu+
[Granada Sky (Mogiki Hayami)] Mayonaka no Tokubetsu Lesson | Special Midnight Lesson (Go! Princess Precure) [English] {5 a.m.} [Digital]
[Takamura Wamu] Private Lesson (COMIC Anthurium 2016-08) [Chinese] [媽媽和布魯斯韋恩一樣叫做瑪莎的最愛路易絲蓮恩漢化組]
(Love Song ☆ Lesson ♪ 8 th) [Amiya (Nono)] Ore no Tokiya ga Konnani Osuna Wake ga Nai! (Uta no Prince-sama)
COMIC Kairakuten 2021-04
(C89) [Studio Fatality (Yanagie)] DONUTS LESSON (THE IDOLM@STER CINDERELLA GIRLS)
[TinkerBell] [Full Color Seijin Han] Doki Doki Oyako Lesson ~Oshiete H na Obenkyou~ Daiichiwa Complete Ban [Digital]
(COMIC1☆14) [OrangeMaru (YD)] Summer Lesson (Fate/Grand Order)
(Love Song ☆ Lesson ♪ 9th) [Usodatoitteyo. (Nekome)] Shoshin to Kami-sama (Uta no Prince-sama)
(C89) [Sound:0 (mirin)] SECRET LESSON (IDOLiSH 7)
COMIC Penguin Club 2020-01
[Kisaragi Gunma] Chikan Lesson | Molester Lessons (COMIC Megastore H 2005-03) [English] [Decensored] [Colorized]
Okita-san to Kotatsu Ecchi
(C83) [Kotatsu de Mikan Chokubai Tokoro (Semahiro)] Chou Kyokon Futanari Shoujo vs Shoumei Shashin [English]
(C88) [Koppun (Hone)] Go! Kirakira Princess Lesson! (Go! Princess PreCure)
(COMIC1☆8) [Attamaro. (Kotatsu.)] Ganbare Renge-chan (Sekai Seifuku ~Bouryaku no Zvezda~)
[Souko Souji] Himitsu no Umanari Tokubetsu Lesson | The Secret to Horses, Special Lesson (COMIC Tenma 2013-08) [Chinese] [沒有漢化] [Colorized]
Shikinami Aiai Kotatsu
(C72) [from SCRATCH (Johnny)] SECRET LESSON 2 ☆ Teana to Erio de StS ☆ (Mahou Shoujo Lyrical Nanoha StrikerS)
[Kotatsu Guild (Ramu)] Moshimo Musume ga Lolibaba Succubus de Sex Shihoudai dattara [Digital]
[Ao Banana] Sekusasaizu Dai Sakusen | Sexercise Grand Strategy (AV Lesson Hajimeruyo) [English]
[Angel Hole (Amata Akuta)] Cheer Girl Monzetsu Lesson
[Mutou Mato] Koakuma Gakuen Lesson Life (COMIC X-EROS #60) [Chinese] [無邪気漢化組] [Digital]
(GOOD COMIC CITY 23) [Fuzainoyamada (Fuzai Yumoto)] LESSON (Boku no Hero Academia)
[Rico] love love lesson (Manga Bangaichi 2016-01) [Chinese] [绅士仓库汉化]
Touhou Sakunyuu Goudoushi Demo Gensoukyou no Musume no Sakunyuu nara Chotto Mitai kamo...
[Kotatsuya (Tatsuneko)] MAHO-TSUKAI-Tai! Wiz (Mahou Tsukai Tai)
[Mitsuya] Ikenai Lesson (COMIC Megastore H 2010-01) [English] {CGrascal}
(C34) [Kotatsuya (Rei Aran, Kotatsu Neko)] Honobono! Iczer 1 (Fight! Iczer One)
COMIC Penguin Club Sanzokuban 2018-07 [Digital]
[MGMEE] Sexual Lesson (COMIC HOTMiLK 2013-09) [English]
[Maeshima Ryou] Gender Free (Kirakira Otona Lesson) [English] {Hennojin}
[Shunmin Mutsumi] Slave Lesson
[Kotatsu no Tsukaima] 東方征服学園~童貞生徒の初めては早苗さん?
(Seishun Cup 13) [Onigiriya (Omusubi)] Zunouha Kagai Lesson (Inazuma Eleven GO)
[Tomoe Tenbu] In Her Crack [English] [Tadanohito + Afro + Fayt]
[sugarBt] Hajimete no Jugyou | First lesson (COMIC Koh 2016-09) [Chinese]
(C95) [Jet-Black Baselarde (Kuno Touya)] Okita-san to Kotatsu Ecchi (Fate/Grand Order) [Chinese] [洛鳶漢化組]
(C99) [Hanao Shouke (Yanase Kotatsu)] Kono Hon ni Honban Koui ha Issai Arimasen | This Book Contains Zero Sex (Fate/Grand Order) [English] [incogna777]
Kotatsu Kankin Nioizeme
Umi no Mieru Basho no Futari no Ouchi.
(C72) [Otaku Beam (Ootsuka Mahiro)] [24-><-14] Lesson#2
(Reitaisai 9) [Kotatsu de Mikan Chokubai Tokoro (Semahiro)] Seigyobou Seigyo Funou (Touhou Project)
(C86) [Basutei Shower (Katsurai Yoshiaki)] SEX p.a.r.t.y -hard drug lesson- (Love Live!) [English] {KFC Translations}
[Qilin] Princess Lesson 1-15
[Hanamaki Kaeru] Himegotatsu | Princess Kotatsu (Men's Young 2009-03) [English] [Carstairs]
[Anthology] Shirimani
Kotatsu de Neteru Clarisse ni Iretari Dashitari Shichau Hon