Primary Quantitative Researc

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

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

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

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

Insect Research Institute 2

Research of Barnaby Brooks Jr.

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

Fellatio Kenkyuubu | Blowjob Research Club Ch. 2

Erina-sama no Renai Kenkyuukai. 2 I Erina-sama's love research lab 2

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

Bowsette's Research

[toyasuaina (Toyasu Aina)] Shizuku Primary (Love Live! Nijigasaki High School Idol Club) [Chinese]

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

Movie Research Lovers

(C66) [Hanzai Tengoku (Hasei Agana)] ACCESS CODE PRIMARY (Fate/stay night) [Chinese] [冬木守護者漢化組]

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

Primary Contact

[りんごくらぶ] それ行け炎上流星群編

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

Manga Research Triangle

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

Zecchou Kenkyuujo 2 Orgasm Research Facility 2

Primary Target -Kouhen-

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

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

Dance! Tentacle Research Institute

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

GRAVITON23

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

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

Zecchou Kenkyuujo 2 | Orgasm Research Facility 2

(RTS!!5) [Zeroshiki (Kabosu)] Primary Target -Kouhen- (Haikyuu!!) [English] [UnmeiNoChance]

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

Fellatio Kenkyuubu | Blowjob Research Club

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

PRIMARY HEART

access code primary

(C93) [Dodoitsu. (Panco.)] Research Love Make Presentation | Research Lab x Expression (Motto! Hinekure Chaser 3) [English] [Pink Cherry Blossom Scans]

(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]

(C63) [Nagumo Curry-Bu (Nagumo)] Primary (Ragnarok Online)

Dokidoki Occult Kenkyuubu | Heart Pounding Occult Research Club

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

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

Zecchou Kenkyuujo | Orgasm Research Facility

Break Time with Primaries at the Net Cafe

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

Ijimerarekko Club

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

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

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

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

Fellatio Research Department | Fellatio Kenkyuubu - Ch.01

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

Two Girl's Suck-Suck Research Note

(C95) [Mysp5cm (Mareo)] Iregui Otokonoko x Dairankou Hamedori Namahousou

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

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

Shizuku Primary

Dance! Tentacle Research Institute