Exploratory Research Design

[Shinsekai Set (Hetaren)] Kurodate o Shiro ni Someru Seishoku Kenkyuu o (Blue Archive) | Sexual Gourmet Research: Dyeing Kurodate White [English] [Douzo Lad Translations]

Fellatio Kenkyuubu | Blowjob Research Club Ch. 2

(C80) [Digital Accel Works (INAZUMA)] INAZUMA Jiyuu Kenkyuu | INAZUMA Research Project (PreCure) [English] {5 a.m.}

Dance! Tentacle Research Center - Seedbed-hen

[Zonda] Fellatio Kenkyuubu Ch. 3 | Blowjob Research Club Ch. 3 (COMIC Mugen Tensei 2022-02) [English] [Sloppy Seconds] [Digital]

Kamiyama Koukou Omanko Kenkyuukai Katsudou Kiroku | Kamiyama Highschools Vagina Research Society Activity Record

[Arkham/Rewnoss] Folk Song design artbook

Futanari Kenkyuu Dousoukai | Futanari Research Club

D4C continue again

(C74) [Tsurupeta (Various)] Tsurupeta Kenkyuu Houkokusho "Kakyuu Sentou In no Isshou" - Turupeta Research Report

[Department Y Research Institute] Bōkoku Ōji no matsuro

[Kinku] Jiyuukenkyuu Bitch Report | Research Project: Bitch Report! (COMIC LO 2013-09) [English]

[Rakujin] Abandon-100Nukishinai to Derarenai Fushigi na Kyoushitsu-with Character design & Secret illustration, E-book limited version

[Tsurupeta Kenkyuusho (Various)] Tsurupeta Kenkyuu Houkokusho 005 "Dengeki Jigoku" - Turupeta Research Report

[Naitou Kirara] Ready Slime! [Illustration & Character Design Setteishuu Tsuki Denshishoseki Genteiban][Chinese][打打计数君个人汉化][Digital]

Dance! Tentacle Research Institute

[KEY TRASH (Hikagi Tatsuhiko)] Wild Princess (GA Geijutsuka Art Design Class)

[Hroz] Succubus no Ningen Kenkyuu | Human Research by a Succubus [English] [thetsuuyaku + 4dawgz]

[Zonda] Fellatio Kenkyuubu Ch. 2 | Blowjob Research Club Ch. 2 (COMIC Mugen Tensei 2021-07) [Chinese]【羅莎莉亞漢化】

Fellatio Kenkyuubu Blowjob Research Club Ch. 3

Dokidoki Occult Kenkyuubu | Heart Pounding Occult Research Club

[Kawai Shun] Odoru! Shokushu Kenkyuujo | Dance! Tentacle Research Institute [English] [solowing]

[MLC Design House (LIN, Maria)] Xing (Air)

[Kanyapyi] Private Design (COMIC Megastore H 2009-05) [English] {Hentai from Hell}

Zecchou Kenkyuujo 2 Orgasm Research Facility 2

Hatsujo MuchiMuchi Girl Melonbooks Kounyuu Tokuten Kakioroshi Illustration & Character Design Shuu

[Kawai Shun] Odoru! Shokushu kenkyūjo (Omake manga) | Dance! Tentacle Research Center (Bonus Comic) [English]

(C90) [Sumeragi Designs (Sumeragi Seisuke)] PORNO STAR (Granblue Fantasy)

[Noise] Chinko no Jiyuu Kenyuu | Dick Research Project (COMIC LO 2019-05) [English] [Doki Fansubs] [Digital]

Binyuchousain Ayako | Busty Researcher Ayako

[Aoi Hitori] Dousoukai | Alumni Association (Bishoujo Kakumei KIWAME 2011-02 Vol.12) [English] [SaHa]

(C96) [Tamarun (Tamarun)] Abby Kenkyuu Bon | Abby Research Book (Fate/Grand Order) [English] [Team Chungus TL]

[Kawai Shun] Odoru! Shokushu kenkyūjo (Omake manga) | Dance! Tentacle Research Center (Bonus Story) [English]

(Shuuki Reitaisai 3) [Sumeragi Designs (Sumeragi Seisuke)] D4C final (Touhou Project)

(Kouroumu 10) [Sumeragi Designs (Sumeragi Seisuke)] D4C continue again (Touhou Project) [English] {doujins.com}

Sumeragi Designs ] R. I. P.

Igyou Seibutsu Zukan Michi no Kenkyuu Kikan Hen I | Illustrated Adulteration of Deformed Organisms: Unknown Research Institution, I

(Kouroumu 10) [Sumeragi Designs (Sumeragi Seisuke)] D4C continue again (Touhou Project)

Manga Research Triangle

[SOUND MILK (Otochichi)] Mahou Tsukai Sakusei Kenkyuu | Witch's Semen Milking Research (Mahou Tsukai Precure!) [English] [ATF] [Digital]