Exploratory Research Design

A Female Android Designed to Take Male Virginity

Zecchou Kenkyuujo 2 Orgasm Research Facility 2

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

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

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

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

A book that Proposes designs for sissy tattoos

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

JS Kenkyuukai | JS Research Seminar

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

Fellatio Research Department | Fellatio Kenkyuubu - Ch.01

Self-reliance, exposure fashion designer

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

BOUNTY HUNTER GIRL vs FASHION DESIGNER Ch. 4

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

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

[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

[Naitou Kirara] Ready Slime! [Illustration & Character Design Setteishuu Tsuki Denshishoseki Genteiban]

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

Research of Barnaby Brooks Jr.

R. I. P.

SSSS.DYNAZENON GRIDMAN UNIVERSE CHARACTER CONCEPT DESIGN

R. I. P.

Fellatio Kenkyuubu | Blowjob Research Club

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

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

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

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

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

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

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

Ninja Slayer Novel Character Design Collection

D4C

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

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

Attack on Research

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

Futanari Kenkyuu Dousoukai | Futanari Research Club

Level Design

[KEY TRASH (Hikagi Tatsuhiko)] Wild Princess (GA Geijutsuka Art Design Class) [Chinese] [沒有漢化]

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

Mahou Tsukai Sakusei Kenkyuu | Witch's Semen Milking Research

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

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

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

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

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

[Department Y Research Institute] Gen'ō No Seidorei-Chan De Asobou!

(C75) [Tsurupeta Kenkyuusho (Various)] Tsurupeta Kenkyuu Houkokusho "Kessen Zenya" - Turupeta Research Report

[Takahashi Note] Jiyuukenkyuu | Independent Research (COMIC LO 2015-11) [English] {5 a.m.}

Fellatio Kenkyuubu - Fellatio Research Department

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

Meuniere

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

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

[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. 2

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

[Department Y Research Institute] Bōkoku Ōji no matsuro

D4C continue

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

[Shitoalice] ON THE LINE (Neon Genesis Evangelion)

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

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

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

BOUNTY HUNTER GIRL vs Re:FASHION DESIGNER Ch. 13

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

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

[Arkham/Rewnoss] Folk Song design artbook

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

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

D4C continue again

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

[Haruta] Youkoso! BL Kenkyuu Club | Welcome to the Yaoi Research Club 2-in-1 Bonus Chapter [English] [Digital]

Otokonoko Senyou Sharyou Bromancecar 1&2 | The Carriage Designated for Ladyboys 1&2

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

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

[Meme50] Mizugiwa Sabotage | Sabotage at the water's edge [English] [Decensored]

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

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

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

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

(SC6) [MLC Design House (LIN)] TWIN SIGNAL (Hikaru no Go)

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

Fellatio Kenkyuubu Ch. 3 | Blowjob Research Club Ch. 3

D4C final

[MLC Design House (Maria)] Maid no Mori (Hanaukyou Maid Tai)

School Days Design Data Collection

Binyuchousain Ayako | Busty Researcher Ayako

Manga Research Triangle

Enquête de Henshinato no Design ga Kawaru !

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

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

Dragon Farm Compulsion

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

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

Magical Occult Research Girl Defeated

Research Love Make Presentation | Research Lab x Expression

Enquête de Henshinato no Design ga Kawaru !

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

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

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

(C91) [Neko wa Manma ga Utsukushii (Hisasi)] Erina-sama no Renai Kenkyuukai. 2 I Erina-sama's love research lab 2 (Shokugeki no Soma) [English] [Metaphrastes]

Fellatio Research Department Epilogue

Dance! Tentacle Research Institute

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

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

Dance! Tentacle Research Institute

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

Sumeragi Designs ] R. I. P.

Two Girl's Suck-Suck Research Note

(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]

Insect Research Institute 2

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