Exploratory Research Design

[COCOA] BOUNTY HUNTER GIRL vs FASHION DESIGNER Ch. 4 [Chinese]

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

D4C continue again

Fellatio Kenkyuubu Blowjob Research Club Ch. 3

(C85) [Sumeragi Designs (Sumeragi Seisuke)] D4C continue (Touhou Project) [English] {doujins.com}

Youkoso! BL Kenkyuu Club | Welcome to the Yaoi Research Club

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

(C90) [Ikariya Koubou (Ashita Ikariya)] GA Bijutsu-bu Fuufu Dokuhon Nyuuyoku-hen (GA Geijutsuka Art Design Class)

[Sumeragi Designs (Sumeragi Seisuke)] D4C (Touhou Project) [Digital]

[Un-Go] Doctor Kazamori's Slightly Naughty Research 2 [English]

[Matsurioka Hideyuki] Reken ~Shinsoku Raper Domo~ | Rape Researches

School Days Design Data Collection

R. I. P.

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

Level Design

[Sumeragi Designs (Sumeragi Seisuke)] Dragon Farm Compulsion ~Tatsuta Kyousei Ryoujoku~ (Kantai Collection -KanColle-) [Digital]

(C77) [Tsurupeta (Various)] Tsurupeta Kenkyuu Houkokusho "Shin Hissatsu Waza no Kyoufu " - Turupeta Research Report

[Slow Masturbation Research Society] "The seven fundamental operations" [ENG]

(C86) [Sumeragi Designs (Sumeragi Seisuke)] Ninja Acme Shock - Sendai-Kaini in Flames (Kantai Collection -Kancolle-)

[Kawai Shun] Dance! Tentacle Research Institute [English]

Twilight's Research | 暮光学习计划

Self-reliance, exposure fashion designer

[Zonda] Fellatio Kenkyuubu | Blowjob Research Club [English] [Uncensored] [head empty + RedLantern]

Magical Occult Research Girl Defeated

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

(C78) [Yo wa Okazu wo Shomou Shiteoru (Shian)] Onna Kenkyuuin no Ijou na Aijou | A Female Researcher's Abnormal Desire [English] =LWB=

A book that Proposes designs for sissy tattoos

[Tempuru] Albedo & Sucrose's Isekai Observation Research Report

Zecchou Kenkyuujo 2 | Orgasm Research Facility 2

Yuri-ken Beit Boshuuchuu Soushuuhen | Yuri's Lab Wants Research Assistants

Fellatio Research Department | Fellatio Kenkyuubu - Ch.01

Insect Research Institute 2

Jiyuu Kenkyuu de Ochinchin o Shiraberaremashita | We Decided to Examine a Penis for Our Independent Research

Zecchou Kenkyuujo | Orgasm Research Facility

Two Girl's Suck-Suck Research Note

Zecchou Kenkyuujo 2 Orgasm Research Facility 2

[Ogawa Kanran] Yoi Kono Jiyuu Kenkyuu | Independent Research Time [English] [Jojo]

[1bit (yuyu)] Igyou Seibutsu Zukan Michi no Kenkyuu Kikan Hen I | Illustrated Adulteration of Deformed Organisms: Unknown Research Institution, I [English]

[Dokurosan] Eiken Lovers | Movie Research Lovers (COMIC Tenma 2009-05 Vol. 132) [English] [Brolen]

Dance! Tentacle Research Institute

Movie Research Lovers

(C63) [MUSASABIDO (Bakuchin)] Research of a maid

[Department Y Research Institute] Bōkoku ōjo no matsuro

[Department Y Research Institute] Rorisakyubasu Wa Ningen Ni Tsukamaruto Dō Naru No?

(Shuuki Reitaisai 3) [Sumeragi Designs (Sumeragi Seisuke)] D4C final (Touhou Project) [Chinese] [BLUE氪个人翻译]

Enquete de Henshingo no Design ga Kawaru!

BOUNTY HUNTER GIRL vs FASHION DESIGNER Ch. 4

Research Fellow

(C94) [Tsukushino Komichi (Sugina Fujitaka)] Buin Kanyuu ni wa Kiken ga Ippai!? (GA Geijutsuka Art Design Class)

[Eriaru99 (Shachiku)] Noda Miki Eromanga (GA Geijutsuka Art Design Class)

Dragon Farm Compulsion

(COMIC1☆11) [Showa Saishuu Sensen (Hanauna)] Kamiyama Koukou Omanko Kenkyuukai Katsudou Kiroku | Kamiyama Highschools Vagina Research Society Activity Record (Hyouka) [English] [Doujins.com]

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

BOUNTY HUNTER GIRL vs Re:FASHION DESIGNER Ch. 13

(C84) [Kacchuu Musume (Yukiyanagi)] Shingeki no Kenkyuu | Attack on Research (Shingeki no Megami) (Shingeki no Kyojin) [English] [CGRascal]

Fellatio Kenkyuubu | Blowjob Research Club

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

Leave-It-To-Me Design - Ch. 01

(C81) [Saigado (Saigado)] R-LAB. - Dr. Akagi's individual research lab (Neon Genesis Evangelion) [Chinese] [瓜皮漢化·母系戰士出品@萌夢星君發佈]

Manga Research Triangle

[坐磨屋ミロ×鈴川アキナ] 新人バイトはHカップ～もしもアルバイト先の新人が押しに弱い巨乳娘だったら… 第01-07巻

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

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