[Kawai Shun] Odoru! Shokushu kenkyūjo (Omake manga) | Dance! Tentacle Research Center (Bonus Comic) [English]
Fellatio Research Department | Fellatio Kenkyuubu - Ch.01
Binyuchousain Ayako | Busty Researcher Ayako
Erina-sama no Renai Kenkyuukai. 2 I Erina-sama's love research lab 2
[1bit (yuyu)] Igyou Seibutsu Zukan Michi no Kenkyuu Kikan Hen I | Illustrated Adulteration of Deformed Organisms: Unknown Research Institution, I [English]
[Shinsekai Set (Hetaren)] Kurodate o Shiro ni Someru Seishoku Kenkyuu o (Blue Archive) | Sexual Gourmet Research: Dyeing Kurodate White [English] [Douzo Lad Translations]
Magical Occult Research Girl Defeated
Futanari Kenkyuu Dousoukai | Futanari Research Club
[Shiranui Research Institute (Shiranui)] Shiranuhi Ninpo cho ichi-kan (King of Fighters, Street Fighter) [Digital]
Mahou Tsukai Sakusei Kenkyuu | Witch's Semen Milking Research
[Matsurioka Hideyuki] Reken ~Shinsoku Raper Domo~ | Rape Researches
JS Kenkyuukai | JS Research Seminar
[Slow Masturbation Research Society] "The seven fundamental operations" [ENG]
[SOUND MILK (Otochichi)] Mahou Tsukai Sakusei Kenkyuu | Witch's Semen Milking Research (Mahou Tsukai Precure!) [English] [ATF] [Digital]
Kamiyama Koukou Omanko Kenkyuukai Katsudou Kiroku | Kamiyama Highschools Vagina Research Society Activity Record
[Department Y Research Institute] Bōkoku Ōji no matsuro
Sensei to Boku Ch. 1-3
Dance! Tentacle Research Institute
Dance! Tentacle Research Center - Seedbed-hen
[Dokurosan] Eiken Lovers | Movie Research Lovers (COMIC Tenma 2009-05 Vol. 132) [English] [Brolen]
[Dasum & Puutaro] H-Campus H校园<第2季> ch.47~49 (Chinese)
Adult Goods Tanchiki ~Machi no Inran Onna o Research Seyo~
Manga Research Triangle
Twilight's Research | 暮光学习计划
Fellatio Kenkyuubu | Blowjob Research Club Ch. 2
(COMIC1☆11) [Showa Saishuu Sensen (Hanauna)] Kamiyama Koukou Omanko Kenkyuukai Katsudou Kiroku | Kamiyama Highschools Vagina Research Society Activity Record (Hyouka) [English] [Doujins.com]
(C78) [Draw Go (Souichi)] Tokumei Research 1999 ~ Maya-chan Shinsou Kaimei File ~ (Occult Academy)
Jiyuu Kenkyuu de Ochinchin o Shiraberaremashita | We Decided to Examine a Penis for Our Independent Research
(C77) [Tsurupeta (Various)] Tsurupeta Kenkyuu Houkokusho "Shin Hissatsu Waza no Kyoufu " - Turupeta Research Report
[Kawai Shun] Odoru! Shokushu Kenkyuujo | Dance! Tentacle Research Institute [English] [solowing]
[Zonda] Fellatio Kenkyuubu Ch. 3 | Blowjob Research Club Ch. 3 (COMIC Mugen Tensei 2022-02) [English] [Sloppy Seconds] [Digital]
[Department Y Research Institute] Bōkoku ōjo no matsuro
Yakan Shinnyuu
[Kinku] Jiyuukenkyuu Bitch Report | Research Project: Bitch Report! (COMIC LO 2013-09) [English]
[Kawai Shun] Odoru! Shokushu Kenkyuujo "Naedoko" Hen | Dance! Tentacle Research Center - Seedbed-hen [English] [solowing]
[Kawai Shun] Odoru! Shokushu Kenkyuujo (Omake manga) | Dance! Tentacle Research Center (Bonus Comic) [Chinese]
Bowsette's Research
Kashima to Convenix! After
Fellatio Kenkyuubu Ch. 3 | Blowjob Research Club Ch. 3
Dokidoki Occult Kenkyuubu | Heart Pounding Occult Research Club
(C63) [MUSASABIDO (Bakuchin)] Research of a maid
(C84) [Kacchuu Musume (Yukiyanagi)] Shingeki no Kenkyuu | Attack on Research (Shingeki no Megami) (Shingeki no Kyojin) [English] [CGRascal]
[Zonda] Fellatio Kenkyuubu - Fellatio Research Department | Blowjob Research Club Ch. 3 (COMIC Mugen Tensei 2022-02) [English] [CrinkzScans] [Digital]
[Noise] Chinko no Jiyuu Kenyuu | Dick Research Project (COMIC LO 2019-05) [English] [Doki Fansubs] [Digital]
[Kawai Shun] Odoru! Shokushu kenkyūjo (Omake manga) | Dance! Tentacle Research Center (Bonus Story) [English]
Attack on Research
(C80) [Digital Accel Works (INAZUMA)] INAZUMA Jiyuu Kenkyuu | INAZUMA Research Project (PreCure) [English] {5 a.m.}
Zecchou Kenkyuujo 2 | Orgasm Research Facility 2
[Minamida Usuke] Dokidoki Eizou-Kenkyuu-Bu | Steamy Cinema Studies and Research Club (COMIC HOTMILK 2017-01) [English] [Digital] [Incomplete]
(C79) [Excite Rabbit, Kinako Mochi (Various)] Carrot Pudding (Disgaea 3)[Chinese]
[Un-Go] Doctor Kazamori's Slightly Naughty Research 2 [English]
Research of Barnaby Brooks Jr.
Uwaki Chousa ㅣ 불륜조사
[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
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
[Ogawa Kanran] Yoi Kono Jiyuu Kenkyuu | Independent Research Time [English] [Jojo]
Shitteta.
[Hroz] Succubus no Ningen Kenkyuu | Human Research by a Succubus [English] [thetsuuyaku + 4dawgz]
(C80) [AKKAN-Bi PROJECT (Yanagi Hirohiko)] Analt Only (Ano Hi Mita Hana no Namae o Bokutachi wa Mada Shiranai.) [Chinese] [lvlvbubu个人汉化]
Tsunagu Karada Mittsu
[Kawai Shun] Dance! Tentacle Research Institute [English]
[Hara Shigeyuki] Binyuchousain Ayako | Busty Researcher Ayako [English] {Tadanohito} [Digital]
[Takahashi Note] Jiyuukenkyuu | Independent Research (COMIC LO 2015-11) [English] {5 a.m.}
[Mother2] Kimaira Kenkyuu File - Chimera Research File [Chinese](Uncensored)
(C76) [.7 (DAWY)] Futanari Sakuya-san 2 (Touhou Project)
(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]
(C75) [Tsurupeta Kenkyuusho (Various)] Tsurupeta Kenkyuu Houkokusho "Kessen Zenya" - Turupeta Research Report
(C96) [Tamarun (Tamarun)] Abby Kenkyuu Bon | Abby Research Book (Fate/Grand Order) [English] [Team Chungus TL]
Fellatio Kenkyuubu Blowjob Research Club Ch. 3
Movie Research Lovers
Zecchou Kenkyuujo | Orgasm Research Facility
Isekaijin Rokujouhan Dousei Seikatsu
[Tsurupeta Kenkyuusho (Various)] Tsurupeta Kenkyuu Houkokusho 005 "Dengeki Jigoku" - Turupeta Research Report
(C78) [Yo wa Okazu wo Shomou Shiteoru (Shian)] Onna Kenkyuuin no Ijou na Aijou | A Female Researcher's Abnormal Desire [English] =LWB=
Two Girl's Suck-Suck Research Note
Onna Joushi to Ura de Nikutaikankei o Motsu Ohanashi
Yoiko no Lolita Kyoushitsu Vol. 3
Action Pizazz DX 2014-09
(C75) [TailBell (Osuzu Akiomi)] Estrus (Birdy the Mighty)
Maiden Problems
3-kkakan de Ningyoutsukai o Otosu Hon | The Fall of the Puppeteer in 3 Days
Kimi wa Akogare no Tawawa II
(CR29) [Jido-Hikki (Kokekokko Coma)] Misora So Ra Si Do (Ojamajo Doremi)