Otouto Kansatsu Nikki
[Yihyeonmin] Drug Candy Ch.0-29 (English) (YoManga)
[Kacchuu Musume] Gokudou Kansatsu Nikki (Various)
Kiru × Koro
(C86) [Ennui-tei (Ousawa Kanata)] Nagisa-chan to Hokentaiiku! (Ansatsu Kyoushitsu)
Brainwashing Education Classroom - Akiza Hen II
[FAT] Zetsubou no Kyoushitsu ~Shokushu ni Kiseisare Sennou Sarete Kyouki e to Ochiteyuku Manabiya~ | Classroom Of Despair ~The School Where Everyone Starts Sexually Falling To Hypnotic Tentacles~ [English] {Doujins.com}
Kansatsu Sketch
[Yamamoto Yammy] Nichijou Bitch Seitai Kansatsu | 日常淫蕩女性体観察 [Chinese]
(SUPER23) [Dogfes (sio)] Kagai Jugyou (Ansatsu Kyoushitsu)
Boku no Oba-san Kansatsu Kiroku
坏老师 | PHYSICAL CLASSROOM 11 Manhwa
[Raven] Aiken Musume Kansatsu Nikki
Kemono Ecchi Kansatsu Kiroku
(COMIC1☆13) [Chi-Ra-Rhyzhm (Hidaka Toworu)] Mikan Kansatsu Kiroku (To LOVE-Ru) [Chinese] [琴叶汉化]
Futanari Pool Classroom
[pantwo (ZIZ)] Kachi Kuja Kansatsu Nisshi (Final Fantasy IX) [English] =LWB= [Digital]
Bad Teacher | PHYSICAL CLASSROOM Ch. 7-8 [English]
[Okayusan] Seishi Kansatsu (COMIC Anthurium 025 2015-05) [Chinese] [无毒汉化组]
(COMITIA92) [Marked-two (Maa-kun, Shichijou)] Fumi-chan no Kansatsu Nikki (Jou) [Chinese] [狼娘汉化]
[Massaratou (Motomushi)] Dankan ~Kyoushitsu nite~ | Warming Sex ~Inside the Classroom~ [English] [Digital]
Mashㆍkyrielight Suimin Kansatsu Houkokusho
(C87) [Mysp5cm (Mareo)] Rankou Otokonoko Kyoudaidon Nama Housou
Darjeeling no Seikatsu Kansatsu Nisshi.
[Kuritsu Yoshihiro] Marutto Kansatsu♡ Inkou Kyoushitsu - Let's Observe a Public Fuck in a Classroom
(C76) [Kinakomochi (Uryu Sango)] Ookami no Kansatsuki (Spice and Wolf)
Josou Ishi no Sourou Chiryou ♥ Kansatsuki
Nekomimi Shoujo Kansatsu Kiroku | 貓耳少女觀察記錄
(Shota Scratch 18) Tashinamu 08 (Various)
[Kiriyama] Rika no Kansatsu Kiroku (COMIC X-EROS #14) [Chinese] [无毒汉化组]
Onee-chan wa Otouto no Chinpo o Kansatsu Shitai
Juukan Kyoushitsu - Bestiality Classroom Ch. 1-5
[Sink] Okusama Suteki na Kyoushitsu (Married Woman's Wonderful Classroom) [English]
(Puniket 33) [Yumesaki Annai Kairanban (Hiro Hiroki)] Kokoro-chan Kansatsu Nikki (Kamisama Minarai Himitsu no Cocotama)
(C92) [Tetchan Hato (Minasuki Popuri)] Himawari Kansatsu Nikki
Kansatsu Shippai Shuu Vol. 2
(Reitaisai 15) [ELHEART'S (Ibuki Pon)] Zannen Joushi no Kansatsu Nikki (Touhou Project)
(SUPERKansai20) [OnSlant (Sharu)] Sakazuki ni Horoyoi (Ansatsu Kyoushitsu) [Incomplete]
Ero kyōshitsu - BG CP - ansatsu R 18 practice
(C86) [waterwheel (Shirota Dai)] Suguha-chan Kansatsu Nikki | Suguha-chan Observation Diary (Sword Art Online) [English] {doujin-moe.us}
Night Classroom
Izana no Nagate Ikusei Kyoushitsu | Izana’s Nagate Training Classroom
[EBA] Imouto Kansatsu Nikki 2 days (COMIC Anthurium 020 2014-12) [Chinese] [名潴學園]
Henshin Heroine Kansatsu
Seetai kansatsutsuu
Jinbobo ~Abunai Shiiku Kansatsu ~
(COMITIA92) [Marked-two (Maa-kun, Shichijou)] Fumi-chan no Kansatsu Nikki (Jou) | Fumi-chan's Observation Diary (Top) [English] [desudesu]
Nichijou Bitch Seitai Kansatsu
(SC2015 Winter) [RE:LAY (Kuroiwa Madoka)] PL/RAY END (Ansatsu Kyoushitsu)
Seiki Kansatsu Nikki
(C94) [Yakiniku Tabetai (Derauea)] Mash Kyrielight Suimin Kansatsu Houkokusho (Fate/Grand Order)
(C88) [Takumiya (Goban)] Sento Isuzu Kansatsu Nikki (Amagi Brilliant Park)
(Reitaisai 16) [Lolimate Seizou Koujou (Lolimate)] Suyasuya Kyouko-chan o Osawari Kansatsu (Touhou Project) [Chinese] [Lolipoi汉化组]
Haguro no Shireikan Kansatsu Note
Sensuality Classroom
(COMIC1☆8) [Light Garden (Hikabe Sakuho)] Haraguro Megane no Tokoro ni Iru (Ansatsusha) ga Kawaii (Log Horizon) [English] [EHCOVE]
A PHYSICAL CLASSROOM 2 Manhwa
KanMusu Chichi kosu Kansatsu Kiroku Rei
[Hatomame (Harazumi Tami)] Ike Nyotaika Keika Kansatsuki (Fire Emblem: Path of Radiance) [Digital]
[Chikiko] Juukan Kyoushitsu - Bestiality Classroom Ch. 1-3 [English] [Neeko7]
[Toshiue Onee-san Tengoku (Taki)] Boku no Oba-san Kansatsu Kiroku [Chinese]
Koakuma no Patchouli Kansatsuki
[Shukketsu Kansatsu Nikki (HemoglobinA1C)] 睡眠姦触手本 (Touhou Project) [Digital]
Juujin Seitai Kansatsu Kiroku
Suguha-chan Kansatsu Nikki | Diario de Observación de Suguha-chan
[Kaze no Gotoku! (Fubuki Poni, Fujutsushi)] Mahou Shoujo Zetsubou Kansatsu Kiroku (Puella Magi Madoka Magica) [Digital]
(C86) [Wareme (Koppe)] Chou Onmitsu Ansatsu Shoujo 2 (PhotoKano)
[Naburu (Yuugai Tosho Kikaku)] Riko no Kansatsu Nisshi (COMIC Shingeki 2009-12)
(C92) [Tetchan Hato (Minasuki Popuri)] Himawari Kansatsu Nikki | Sunflower observation diary [English] [ATF]
(C83) [UROBOROS (Utatane Hiroyuki)] Jiritsu Shikou Kotei Houdai "Ritsu"chan (Ansatsu Kyoushitsu)
Kansatsu to Jissen
[ACID-HEAD (Murata.)] Kiru × Koro (Shinmai Fukei Kiruko-san) [Digital]
[Alice.Blood] Brainwash Classroom - Anzu Misaki Collection
Mob Oji-san to Iku Ningen Kansatsu Variety Saihara Shuuichi Hen
Mokuhyo「Chikyu」
Imouto ga Seishi no Kansatsu o Yamete Kurenai
Kansatsu Shippai Shuu Vol. 6
Observer ni Kansatsu Sareru Deutschland-kyuu Shimai
[Tokyo Note, UOHSAOH (Amamiya Amako, Miwa Chikara)] Takotsubo Dining (Ansatsu Kyoushitsu)
[Ban Kazuyasu] Inkou Kyoushitsu | Indecent Classroom
(C86) [Youkai Tamanokoshi (CHIRO)] Izana no Nagate Ikusei Kyoushitsu | Izana’s Nagate Training Classroom (Knights of Sidonia) [English] [EHCOVE]
[Yamamoto Yammy] Nichijou Bitch Seitai Kansatsu
[Takuwan] H-ERO -Sei no Kyoushitsu- | H-ERO ~Classroom of Sex~ [English] [doujin-moe.us]
(C94) [Tengu Kotengu (Kotengu)] Boku to Atago Onee-san no Natsuyasumi Sei Kansatsu Nikki (Azur Lane) [Chinese] [空気系☆漢化]
Ui-chan no Onanie Teiten Kansatsu
(C62) [Studio KIMIGABUCHI (Entokkun)] Azumanga Hyouryuu Kyoushitsu. | Azumanga Drifting Classroom (Azumanga Daioh) [English] =ADTRW=
[Muy-x] Re-Training Classroom (Assassination Classroom) [English] [Incomplete]
[Po-Ju] Rankou Kyoushitsu | Promiscuity Classroom (Shounen Ai No Bigaku 15 - The Josou Shounen ~ Shitagihen ~) [Chinese] [極東靈魂編輯部漢化]
(C64) [kodomo challenge (Various)] natsu no kansatsu nikki | Summer observation diary (Original) [English]
Imouto Kansatsu Nikki - The Record of Sex with My Sister
Brainwashing Classroom ~Kami☆Kaoru Chapter~
[Owari] Gaku Karu ga Eroi Koto Shiteru Dake (Ansatsu Kyoushitsu)
[EBA] Imouto Kansatsu Nikki 1 days - 2 days
[Ameyama Denshin] Yuutousei Doronuma Kansatsushitsu | Honor Student in the Quicksand Observation Booth (ANGEL Club 2015-07) [English] =LWB=
(564 Jigenme) [CO2 (Kanan, Minashiro)] Meltykiss (Ansatsu Kyoushitsu)
Chou Onmitsu Ansatsu Shoujo | 초은밀 암촬 소녀
[Kuritsu Yoshihiro] Marutto Kansatsu Inkou Kyoushitsu | 完全的觀察 淫交教室 [Chinese]
[Cuvie] Kansatsu to Jissen (COMIC Kairakuten BEAST 2018-08) [Chinese] [康仲傑下來打躲避球] [Digital]
Sennou Kyouikushitsu ~Kamiya Kaoru Hen~ | Brainwashing Classroom ~Kami☆Kaoru Chapter~
Friends no Oshikko Kansatsuki | FRIENDS的尿尿观察日记
KarNagisa
ターゲットX地球 (日本語/繁體中文)
(Houraigekisen! 12) [AIRBOX (YU-TA)] Seiki Kansatsu Nikki (Kantai Collection -KanColle-) [Chinese] [空気系☆漢化]
[Momoyama Jirou] Jinbobo ~Abunai Shiiku Kansatsu~ | Jinbobo ~The Dangerous Breeding Observation~ [English] [desudesu]
Mikan Kansatsu Kiroku
Oku-san ga Shiranai Kairaku | The Pleasure Married Women Do Not Know
Wo-Kyuu Kansatsu Nikki
(C86) [TLE (Fujiyama Takashi)] KanMusu Chichi kosu Kansatsu Kiroku Rei (Kantai Collection -KanColle-)
(C92) [Besshun-tei (Arisu Kazumi)] Friends no Oshikko Kansatsuki | FRIENDS的尿尿观察日记 (Kemono Friends) [Chinese] [檸檬茶漢化組]
(HaruCC19) [Mimoton (Mimoton)] Kimi ni shika dekinai koto (Ansatsu Kyoushitsu)
[Suzuki Kyoutarou] Jinrou Kyoushitsu | Werewolf Classroom Ch. 1-7 [English] [MintVoid]
(C86) [Mimoton (Mimoton)] Nagisa-kun Ketsuboushou (Ansatsu Kyoushitsu)
(C94) [Tengu Kotengu (Kotengu)] Boku to Atago Onee-san no Natsuyasumi Sei Kansatsu Nikki (Azur Lane)
(C74) [Amadeus no Isan (Fujihara Shu, Aoba Shou)] Tengu no Kansatsu Nikki (Touhou Project)