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[Nigeru Support (Nigesapo)] Daionee-chan to Ecchi Suru Hon (Touhou Project) [Digital]

[Department Y Research Institute] Bōkoku ōjo no matsuro

Binyuchousain Ayako | Busty Researcher Ayako

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

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

Inma no Mikata! | Succubi's Supporter! Ch. 1-2

Onanie Supporter Hanako

Twilight's Research | 暮光学习计划

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

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

Kurenaimisuzu Ga Kadan No Hiryō O Ketsu Kara Hineridasu Yōdesu

New Support Units Nier Domina

Jimuin no Watashi ga Ningyou Tsukuri o Support shite orimasu~

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

Seijo Martha no Zenryoku Kaihou!? | Saint Martha's Full Support!?

C102 Omakebon Fuchou Netorare Support in Luluhawa

Ookami-san wa Kowakunai!

(C94) [wakamaker (wakamesan)] Chaldea Supporter (Fate/Grand Order) [Chinese] [無毒漢化組]

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

After School

Zecchou Kenkyuujo 2 | Orgasm Research Facility 2

Supersoniko no Saikyou Support Center [English] [Rewrite]

Fellatio Research Department | Fellatio Kenkyuubu - Ch.01

Inran Hitozuma no seishori Support

Movie Research Lovers

Shinjite Support ni Okuridashita Koumei ga......

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

[wakamaker (wakamesan)] CHALDEAN SUPPORTER (Fate/Grand Order) [Digital]

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

(C73) [ORANGE SOFT (Aru Ra Une)] Aruji no Seikatsu Subete wo Support Suru Formal na Shugosha (Hayate no Gotoku!)

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

Inran Hitozuma no Seishori Support | Servicio Sexual De Una Mujer Casada

Inma no Mikata! | Succubi’s Supporter! Ch 6

Zecchou Kenkyuujo 2 Orgasm Research Facility 2

[Nigeru Support (Nigesapo)] Dairyousai-chan to Ecchi Suru Hon (Touhou Project) [English] {doujins.com} [Digital]