Research Support Optimisim

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

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

(C94) [Nigeru Support (Nigesapo)] Powapowa-kei Iyashi Misty to Ecchi Suru Hon (Touhou Project)

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

(C95) [Nigeru Support (Nigesapo)] Daichan no Sentai Daiko Service (Touhou Project)

[Nigeru Support (Nigesapo)] S-gimi Dai Onee-chan ni Aisarenagara Shiborareru Hon (Touhou Project) [Digital]

(Reitaisai 16) [Nigeru Support (Nigesapo)] Kyuujitsu wa Dai-chan DAY! (Touhou Project)

(C96) [Nigeru Support (Nigesapo)] Ookami-san wa Kowakunai! (Touhou Project)

(C94) [Nigeru Support (Nigesapo)] Powapowa-kei Iyashi Misty to Ecchi Suru Hon (Touhou Project) [Chinese]

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

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

Research Love Make Presentation | Research Lab x Expression

[Tawara Hiryuu] Inran Hitozuma no Seishori Support | A Horny Married Woman's Sexual Support (COMIC Grape Vol. 45) [English] [Hive-san] [Decensored]

Lili no Dungeon Seikatsu Support Katsudou | Lili's Dungeon Support Activities

Shinjite Support ni Okuridashita Koumei ga...... I Sent Zhuge Liang In As Support With Absolute Trust And

Inran Hitozuma no Seishori Support | A Horny Married Woman's Sexual Support (decensored)

[ZENMAIN (Nejiro)] Tokimeki Bunny -Oshikake Bunny no Seishori Support- | Heartbeat Bunny -Uninvited Bunny's Sexual Support- (Blue Archive) [English] [flowerswamp] [Digital]

Imouto Support | Little-Sister Support

[ZENMAIN (Nejiro)] Tokimeki Bunny -Oshikake Bunny no Seishori Support- | Heartbeat Bunny -Uninvited Bunny's Sexual Support- (Blue Archive) [English] [flowerswamp] [Digital]

Jakusha Dansei Kaigo Service “Weekly Men's Support" | Weak Male Care Service "Weakly Men's support"

Sex Support Zupposhi Gozen | Sex Support Sloppy Gozen

[Mother2] Kimaira Kenkyuu File - Chimera Research File [Chinese](Uncensored)

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

(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]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Twilight's Research | 暮光学习计划

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

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

Mahou Tsukai Sakusei Kenkyuu | Witch's Semen Milking Research

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

Research of Barnaby Brooks Jr.

Manga Research Triangle

Attack on Research

Dance! Tentacle Research Center - Seedbed-hen

Movie Research Lovers

Zecchou Kenkyuujo 2 | Orgasm Research Facility 2

Two Girl's Suck-Suck Research Note

Bowsette's Research

Futanari Kenkyuu Dousoukai | Futanari Research Club

JS Kenkyuukai | JS Research Seminar

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

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

Zecchou Kenkyuujo | Orgasm Research Facility

Zecchou Kenkyuujo 2 | Orgasm Research Facility 2

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

Fellatio Research Department | Fellatio Kenkyuubu - Ch.01

Magical Occult Research Girl Defeated

Fellatio Kenkyuubu | Blowjob Research Club Ch. 2

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

[Shinsekai Set (Hetaren)] Kurodate o Shiro ni Someru Seishoku Kenkyuu o (Blue Archive) | Sexual Gourmet Research: Dyeing Kurodate White [English] [Douzo Lad Translations]

Fellatio Kenkyuubu Blowjob Research Club Ch. 3

Dokidoki Occult Kenkyuubu | Heart Pounding Occult Research Club

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

Dance! Tentacle Research Institute

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

Dance! Tentacle Research Institute

[Department Y Research Institute] Bōkoku Ōji no matsuro

[Department Y Research Institute] Bōkoku ōjo no matsuro

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

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

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

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

[1bit (yuyu)] Igyou Seibutsu Zukan Michi no Kenkyuu Kikan Hen I | Illustrated Adulteration of Deformed Organisms: Unknown Research Institution, I [English]

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

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

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

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

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

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

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

Insect Research Institute 2

(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]

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

Zecchou Kenkyuujo 2 Orgasm Research Facility 2

Fellatio Kenkyuubu | Blowjob Research Club

Fellatio Research Department Epilogue

Research Fellow

Fellatio Kenkyuubu - Fellatio Research Department

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

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

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

(C94) [cryptid (Mufuru)] Mikan no Onanie Support (To LOVE-Ru) [Chinese] [嗶咔嗶咔漢化組]

(C94) [cryptid (Mufuru)] Mikan no Onanie Support (To LOVE-Ru)

[Gomu] Shiri Sapo Bitch | Ass Support Thot (COMIC JSCK Vol. 6) [English] [THOT Patrol Translations]

[Atelier kitty] Mia-chan no Support Menu~ [Chinese]

[Atelier kitty] Mia-chan's Support Menu~ [English]

(6tsugo no Tamashii Forever) [kirscherise (Yoshiizumi Hana)] IchiKara no Susume. | Support for Ichikara (Osomatsu-san) [English] [Oyasumimi]

[Akishima Shun] Sapo-Machi Shoujo - Girls are Waiting for Support [Digital]

(C74) [Moon Night Kitten (Kouki Kuu)] Super Sonico no Saikyou Support Center (Super Sonico) [English] [4Dawgz] [Decensored]

[Nishi Iori] Jii Shien Iinkai | The Masturbation Support Committee (Complete) [English] {doujin-moe.us}