Mama-san Kansatsu-ki ~Tomodachi no Haha ni Yokujou Shite Shimatta Boku~
Darjeeling no Seikatsu Kansatsu Nisshi.
Sensei Kansatsu Nikki
Ecchi na Onaka Kansatsu.
[Sanpaku] Mama Cli Kakuchou Kansatsu Nikki | Mama's clit extension journal (COMIC Masyo 2016-07) [English] [man-machine translations]
[Shinoda Kouta] Bishoujo Kansatsu Nikki
Josou Ishi no Sourou Chiryou ♥ Kansatsuki
Maid Flandre Kansatsu Nikki - Maid Flandre observation diary
[EBA] Imouto Kansatsu Nikki - The Record of Sex with My Sister [Chinese]
[Kuritsu Yoshihiro] Marutto Kansatsu Inkou Kyoushitsu | 完全的觀察 淫交教室 [Chinese]
Mahou Shoujo Zetsubou Kansatsu Kiroku
(C94) [Yakiniku Tabetai (Derauea)] Mash Kyrielight Suimin Kansatsu Houkokusho (Fate/Grand Order) [Chinese] [绅士仓库汉化]
Kahogo Kansatsu | Overprotective Supervision
[ppatta] Yasei Ningen Kansatsu Nisshi | Wild Human Observation Record [English] [Digital]
[Hatomame (Harazumi Tami)] Ike Nyotaika Keika Kansatsuki | The Story of Ike's Transition to a Woman's Body (Fire Emblem: Path of Radiance) [English] [ketenefm] [Digital]
[Asahina Makoto] Shoujo Kansatsu Nikki [Chinese]
(C94) [Tengu Kotengu (Kotengu)] Boku to Atago Onee-san no Natsuyasumi Sei Kansatsu Nikki (Azur Lane) [English] [Manabe.moe]
(C92) [IRIOMOTE (Saryuu)] Juujin Seitai Kansatsu Kiroku [English] [biribiri]
[Naburu (Yuugai Tosho Kikaku)] Riko no Kansatsu Nisshi (COMIC Shingeki 2009-12)
Kaga-san Kansatsu Nikki
(C92) [Tetchan Hato (Minasuki Popuri)] Himawari Kansatsu Nikki
(C89) [Aomayu (Ramototu)] Letty-san no Yousei-san Kansatsuki (Touhou Project)
(COMIC1☆6) [40010 1-GO (40010 Shisakugata)] SAKKN Shinobu no Araragi Koyomi Kansatsu Nikki (Bakemonogatari)
Otouto Kansatsu Nikki
(C92) [Neko Pantsu] Kemono Ecchi Kansatsu Kiroku (Kemono Friends) [English] [Doujins.com]
[Announ] Kansatsu ~Shoujo Midara Saki~ (COMIC Anthurium 2020-06) [Chinese] [下北泽幕府] [Digital]
[Cuvie] Kansatsu to Jissen (COMIC Kairakuten BEAST 2018-08) [Chinese] [康仲傑下來打躲避球] [Digital]
Saber Oshikko Kansatsu
[EBA] Imouto Kansatsu Nikki 1 days - 2 days
(COMIC1☆02) [Gokujou Resistance] Kansatsu ni Muka nai Onna (Suzumiya Haruhi no Yuuutsu)
(C91) [Yakiniku Tabetai (Derauea)] Nishizumi Maho no Suimin Kansatsu (Girls und Panzer) [Chinese] [瓜皮汉化]
[EBA] Imouto Kansatsu Nikki - The Record of Sex with My Sister [Digital]
(C91) [Yakiniku Tabetai (Delaware)] Nishizumi Maho no Suimin Kansatsu (Girls und Panzer)
(Kouroumu 13) [Konpekitou (Touya)] Maid Flandre Kansatsu Nikki - Maid Flandre observation diary (Touhou Project)
Nishizumi Maho no Suimin Kansatsu
Kansatsu
(SC49) [DROP DEAD!! (Minase Syu)] Imouto no Tomodachi no Shishunki Tokuyuu no Mousou Heigai ni Okeru Kansatsu to Koudou. 2 (Ore no Imouto ga Konna ni Kawaii Wake ga Nai)
[Sanpaku] Mama Cli Kakuchou Kansatsu Nikki | Mama's Clit Extension Journal (Mesu Inkaku Full Bokki - Clitoris to Erection) [English] [man-machine translations] [Digital]
Kansatsu Jikkensitsu
[EBA] Imouto Kansatsu Nikki 1 days (COMIC anthurium 018 2014-10) [Chinese] [名潴學園026]
(Reitaisai 16) [Lolimate Seizou Koujou (Lolimate)] Suyasuya Kyouko-chan o Osawari Kansatsu (Touhou Project) [Chinese] [Lolipoi汉化组]
[Wakino Keibun] Kansatsu Jikkensitsu (Cyberia Maniacs Saimin Choukyou Deluxe Vol.1) [Chinese] [Menethil个人汉化] [Digital]
Balse Kansatsu Nikki
Vila・Lilie Kansatsu Kiroku
(Reitaisai 15) [ELHEART'S (Ibuki Pon)] Zannen Joushi no Kansatsu Nikki (Touhou Project)
Seetai Kansatsu
Suimin Kansatsu
[Inochi Wazuka] Usagi-chan Kansatsu Nikki (Otokonoko HEAVEN Vol. 19) [English] [Digital]
Nichijou Bitch Seitai Kansatsu
Ui-chan no Onanie Teiten Kansatsu
Henshin Heroine Kansatsu
(C86) [waterwheel (Shirota Dai)] Suguha-chan Kansatsu Nikki (Sword Art Online)
[Momoyama Jirou] Jinbobo ~Abunai Shiiku Kansatsu~
Zannen Joushi no Kansatsu Nikki