Exploratory Research Design

A book that Proposes designs for sissy tattoos

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

[Tesuri no Post (Soi)] Miyabi-san to. (GA Geijutsuka Art Design Class)

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

(C90) [Touge Mine (Fujiko)] Geneki GA Class Nodamiki-chan to Cosplay H-zanmai (GA Geijutsuka Art Design Class)

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

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

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

Fellatio Kenkyuubu Blowjob Research Club Ch. 3

Adult Goods Tanchiki ~Machi no Inran Onna o Research Seyo~

School Days Design Data Collection

Zettai ni Ikasetai Adult Goods Maker Kaihatsubu VS Zettai ni Ikanai Adult Goods Maker Eigyoubu | The Sales Rep Who Absolutely Won’t Come VS The Researcher Who Absolutely Wants to Make Her Come

[Shiranui Research Institute (Shiranui)] Shiranuhi Ninpo cho ichi-kan (King of Fighters, Street Fighter) [Digital]

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

[Sumeragi Designs (Sumeragi Seisuke)] D4C (Touhou Project) [Chinese] [基德漢化組] [Digital]

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

R. I. P.

Meuniere

Dance! Tentacle Research Institute

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

Leave-It-To-Me-Design - Ch. 02

Two Girl's Suck-Suck Research Note

[Kawai Shun] Odoru! Shokushu Kenkyuujo "Naedoko" Hen | Dance! Tentacle Research Center - Seedbed-hen [English] [solowing]

(C78) [Draw Go (Souichi)] Tokumei Research 1999 ~ Maya-chan Shinsou Kaimei File ~ (Occult Academy)

[Hara Shigeyuki] Binyuchousain Ayako | Busty Researcher Ayako [English] {Tadanohito} [Digital]

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

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

(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]

Dragon Farm Compulsion

[Department Y Research Institute] Bōkoku Ōji no matsuro

Enquête de Henshinato no Design ga Kawaru !

Zecchou Kenkyuujo | Orgasm Research Facility

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

Fellatio Kenkyuubu | Blowjob Research Club Ch. 2

Sumeragi Designs ] R. I. P.

[Arkham/Rewnoss] Folk Song design artbook

Dungeon's Legion Maou ni Sasagu Official Design Works

[Minamida Usuke] Dokidoki Eizou-Kenkyuu-Bu | Steamy Cinema Studies and Research Club (COMIC HOTMILK 2017-01) [English] [Digital] [Incomplete]

D4C continue again

[Anthology] Angel Halo Vol.2

[Sumeragi Designs (Sumeragi Seisuke)] D4C (Touhou Project) [English] {Sharpie Translations} [Digital]

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

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

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

BOUNTY HUNTER GIRL vs Re:FASHION DESIGNER Ch. 13

[Fully Automatic Public Service Woman (Kobe no Tsukaka)] A book that Proposes designs for sissy tattoos [English][ShujinScanlations]

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

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

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

(C85) [Sumeragi Designs (Sumeragi Seisuke)] D4C continue (Touhou Project)

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

Futanari Kenkyuu Dousoukai | Futanari Research Club

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

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

Movie Research Lovers

Attack on Research

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

Research of Barnaby Brooks Jr.

[Sumeragi Designs (Sumeragi Seisuke)] Meuniere (Fate/Grand Order) [Digital]

(Shuuki Reitaisai 3) [Sumeragi Designs (Sumeragi Seisuke)] D4C final (Touhou Project) [English] {doujins.com}

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

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

Fellatio Research Department | Fellatio Kenkyuubu - Ch.01

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

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

SSSS.DYNAZENON GRIDMAN UNIVERSE CHARACTER CONCEPT DESIGN

[COCOA] BOUNTY HUNTER GIRL vs Re:FASHION DESIGNER Ch. 13

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

Zecchou Kenkyuujo 2 | Orgasm Research Facility 2

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

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