[Alter Maschine (Donson)] Netorare Onna Kyoushi ~Douryou no Mesudorei e to Ochita Eriko~
(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]
(CosCafe16) [Alice no Takarabako (Mizuryu Kei)] Mesudorei(Servant) (Fate/hollow ataraxia)
(C92) [Neko Pantsu] Kemono Ecchi Kansatsu Kiroku (Kemono Friends)
(C94) [Bad End RST (J-MAX JAPAN)] Eromanga Kansatsuki (Eromanga Sensei)
Heya ni Tousatsu Kiki Tsukete Jiikoui Kansatsu Shiyou no Kai
[Momoyama Jirou] Jinbobo ~Abunai Shiiku Kansatsu~ | Jinbobo ~The Dangerous Breeding Observation~ [English] [desudesu]
Sukesuke sensei o kansatsu | 透视老师的性观察
Mesudorei Kansatsu Nikki ~Kimo Otoko to Mesudorei-tachi no Hibi~
Observer ni Kansatsu Sareru Deutschland-kyuu Shimai
Inda no Onna Kishi ~Mesudorei e to Ochiru Onna Kishi Danchou~
She*ry Birkin Kansatsu Ki
[Mikezoutei] Okaa-san o Mesudorei ni Shiyou!
(C94) [Tengu Kotengu (Kotengu)] Boku to Atago Onee-san no Natsuyasumi Sei Kansatsu Nikki (Azur Lane) [Chinese] [空気系☆漢化]
Vila・Lilie Kansatsu Kiroku
[Tsukushino Makoto] Kinshin Mesudorei Ane Otouto
(SPARK12) [Takenoko Poteto (Okameshi)] Ore no Oppai ga Suki Nante Doushio monai Robot da ne (New Danganronpa V3)
Hanazono no Mesudorei Ch. 1-8
Otouto Kansatsu Nikki
[Wakino Keibun] Kansatsu Jikkensitsu [Digital]
[Ichikabachika (Ojigi)] Potter-chan Kansatsuki (Harry Potter) [Digital]
(C90) [Sniff Dogs (Ujiie Moku)] Balse Kansatsu Nikki (Re:Zero Kara Hajimeru Isekai Seikatsu)
(Kouroumu 9) [Shukketsu Kansatsu Nikki (HemoglobinA1C)] Arishu! (Touhou Project)
Otouto Kansatsu Nikki -Mitsukame-
Kansatsu Shippai Shuu Vol. 2
睡眠姦触手本
Maid Flandre Kansatsu Nikki - Maid Flandre observation diary
(Kouroumu 9) [Shukketsu Kansatsu Nikki (HemoglobinA1C)] Arishu! (Touhou Project) [Chinese] [靴下汉化组]
Ui-chan no Onanie Teiten Kansatsu
[GET YOU! (Hasegawa Atsuji)] Akemi Homura Mesudorei Choukyou (Puella Magi Madoka Magica) [Digital]
Kansatsu Shippai Shuu Vol. 6
(Kouroumu 13) [Konpekitou (Touya)] Maid Flandre Kansatsu Nikki - Maid Flandre observation diary (Touhou Project)
[Hatomame (Harazumi Tami)] Ike Nyotaika Keika Kansatsuki (Fire Emblem: Path of Radiance) [Digital]
[EBA] Imouto Kansatsu Nikki 1 days - 2 days
Koakuma no Patchouli Kansatsuki
[Chi-Ra-Rhyzhm (Hidaka Toworu)] Shoujo Choukyou Kansatsu Kiroku [Digital]
Hanazono no Mesudorei | The Slave Girls of the Flower Garden Ch. 1-5
[Nikusoukyuu.] Hanazono no Mesudorei Ch. 3 (COMIC Grape Vol. 42) [Chinese] [Thunder個人漢化]
[Kouzuki Rio] Saiminjutsu de Mesudorei wo Te ni Ireru Houhou
Netorare Kansatsu
(Puniket 33) [Yumesaki Annai Kairanban (Hiro Hiroki)] Kokoro-chan Kansatsu Nikki (Kamisama Minarai Himitsu no Cocotama)
[Sanpaku] Mama Cli Kakuchou Kansatsu Nikki | Mama's Clit Extension Journal (Mesu Inkaku Full Bokki - Clitoris to Erection) [English] [man-machine translations] [Digital]
Darjeeling no Seikatsu Kansatsu Nisshi.
(SC56) [Waffle Doumeiken (Tanaka Decilitre)] Buta-san Choukyou Kansatsu Enikki | Observation Picture Diary of Training a Pig (Accel World) [English] [biribiri]
[Cuvie] Kansatsu to Jissen (COMIC Kairakuten BEAST 2018-08) [Chinese] [康仲傑下來打躲避球] [Digital]
(C86) [waterwheel (Shirota Dai)] Suguha-chan Kansatsu Nikki (Sword Art Online)
[pantwo (ZIZ)] Kachi Kuja Kansatsu Nisshi (Final Fantasy IX) [Digital]
(C64) [kodomo challenge (Various)] natsu no kansatsu nikki | Summer observation diary (Original) [English]
(C75) [Hirusuta (Taira Kosaka)] Sensei Kansatsu Nikki (Mitsudomoe)
(C92) [Neko Pantsu] Kemono Ecchi Kansatsu Kiroku (Kemono Friends) [English] [Doujins.com]
(C91) [Circle Sigma (Ban Daiki)] Kyuuketsuki Rinko -Kanin no Mesudorei Harem- (Taimanin Yukikaze)
Kansatsu Shippai Shuu Vol. 1
Ecchi na Onaka Kansatsu.
[EBA] Imouto Kansatsu Nikki Ch.1-3 [Chinese]
[Kuritsu Yoshihiro] Marutto Kansatsu Inkou Kyoushitsu | 完全的觀察 淫交教室 [Chinese]
Suzumiya Haruhi no Mesudorei
Mama Cli Kakuchou Kansatsu Nikki
(C92) [Tetchan Hato (Minasuki Popuri)] Himawari Kansatsu Nikki | Sunflower observation diary [English] [ATF]