Primary Quantitative Researc

Break Time with Primaries at the Net Cafe

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

Primary Fever

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

Futanari Kenkyuu Dousoukai | Futanari Research Club

[Shimoyakedou (Ouma Tokiichi)] Kouwanseiki-chan to Kekkon Kakko Kari (Kantai Collection -KanColle-) [Digital]

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

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

[Department Y Research Institute] Bōkoku Ōji no matsuro

Chinpo shiikukakari

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

Gal-iro ni Someagaru | Aun mas teñido en colores de chica

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

BLood+s

Dance! Tentacle Research Institute

(Puniket 17) [System ES (SHUKO)] Kuro no Gishiki to Shoujo

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

Inuneko Shimai

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

Fellatio Kenkyuubu Blowjob Research Club Ch. 3

Dokidoki Occult Kenkyuubu | Heart Pounding Occult Research Club

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

(C59) [Houraisaikan, Fuujinken (Morikawa Haru)] Yogoto no Duelist (Yu-Gi-Oh!) [English] [rookie84]

Zecchou Kenkyuujo 2 Orgasm Research Facility 2

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

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

Binyuchousain Ayako | Busty Researcher Ayako

Stray Dog

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

[Sasanoha Toro] Yasashiku Mukimasu node | I'll Peel It Gently (Fate/Grand Order) [English] [Amoskandy] [Digital]

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

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

Primary Contact

[HAPPY CORE (Kinoshita Ichi)] PRIMARY HEART

Dark Game Ch.1-8

Ijimerarekko Club

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

Manga Research Triangle

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