(C58) [Secret Society M (Kitahara Aki)] Utahime no shouzou (Dead or Alive) [English] [Fated Circle]
BITTERSWEET KISS
Namaiki! 2008-09
[Nakatsugawa Minoru] Mama wa Moto Idol (Jun-ai Kajitsu 2009-07) [English] [biribiri]
Tensei Shitara Shokushu Youma datta Ken
(C77) [Secret Society M (Kitahara Aki)] Chuuko no Nene-san. | Second Hand Nene-san (Love Plus) [English] [darknight]
Shichu 10
[Zonda] Fellatio Kenkyuubu Ch. 3 | Blowjob Research Club Ch. 3 (COMIC Mugen Tensei 2022-02) [English] [Sloppy Seconds] [Digital]
Utaha Another Bad End
Venus VS Chuunen Dansei Kyouyu | Venus VS Middle Aged Male Teacher
(C84) [Kacchuu Musume (Yukiyanagi)] Shingeki no Kenkyuu | Attack on Research (Shingeki no Megami) (Shingeki no Kyojin) [English] [CGRascal]
Kamiyama Koukou Omanko Kenkyuukai Katsudou Kiroku | Kamiyama Highschools Vagina Research Society Activity Record
(C37) [Secret Society M (Kitahara Aki)] Anice 2 Gekkabijin (Sonic Soldier Borgman)
[Secret Society M (Kitahara Aki)] Jane Conty Taii Moe Moe Shousasshi (Mobile Suit Gundam Lost War Chronicles)
Mesubuta Kuragari no Nikukai
Binyuchousain Ayako | Busty Researcher Ayako
[Kawai Shun] Odoru! Shokushu Kenkyuujo "Naedoko" Hen | Dance! Tentacle Research Center - Seedbed-hen [English] [solowing]
[Komiya Yuuta] Haru Oboro (Manga Bangaichi 2015-09) [English] {NecroManCr}
[COSINE] Welcome To The PC Society (English)
[Kinku] Jiyuukenkyuu Bitch Report | Research Project: Bitch Report! (COMIC LO 2013-09) [English]
4-shoku Ball Pen wa Midori ga Amaru
(C61) [Secret Society M (Kitahara Aki)] Utahime no shouzou 2 (Dead or Alive)
HOW TO BUILD NIKUBENKI
[SECRET SOCIETY M (Kitahara Aki)] Torikago no Joou (CGRascal)
Zecchou Kenkyuujo 2 | Orgasm Research Facility 2
COMIC Potpourri Club 2006-08
[Nekone]Shenhe is finally part of human society!(Genshin Impact) (Animated) [English]
[Kawai Shun] Odoru! Shokushu Kenkyuujo (Omake manga) | Dance! Tentacle Research Center (Bonus Comic) [Chinese]
(C70) [Secret Society M (Kitahara Aki)] BITTERSWEET KISS (KiMiKiSS)
(C69) [Secret Society M (Kitahara Aki)] Shintaku no Toriko 3 (SoulCalibur)
Dokidoki Occult Kenkyuubu | Heart Pounding Occult Research Club
Daraku Kyoudan - Falling Society
[Azuma Sawayoshi] Warera Ankoku Majutsu Aikoukai! | We Are The Black Magic Society (COMIC RiN 2011-03) [English] [Flatopia]
[Aoi Hitori] Onee-San No Hazukashiikoto
[Kakizaki Kousei] Mesuiki ga Gimuzukerareta Yasashii Shakai -Kouhen- | A Gentle Society Where Bitchgasm is One's Duty, Part 2 (Girls forM Vol. 20) [English] [Dorofinu] [Digital]
Doukoku no Ori
[廢人生活(Rai)] HOLOX Himitsu Kessha Keiei no Susume 01 | How to operate Secret Society H○LOX-01 (Laplus Darknesss) [English] [Digital]
(C71) [Secret Society M (Kitahara Aki)] ZEON Lost War Chronicles Hishokan Hen (Mobile Suit Gundam: Lost War Chronicles)
Kaidan Teishoku
(C88) [Secret Society M (Kitahara Aki)] Venus ga Oji-san ni Camera Mesen de Makuwararete Mawasaremashita. | Sailor Venus - Venus Had Her Hymen Broken and Was Gang Raped by Old Men on Camera. (Bishoujo Senshi Sailor Moon) [English] [doujin-moe.us]
(C92) [Secret Society M (Kitahara Aki)] Utaha Another Bad End (Saenai Heroine no Sodatekata)
(C35) [Secret Society M (Kitahara Aki)] ANICE - Toki no Hanataba (Sonic Soldier Borgman)
Fellatio Research Department | Fellatio Kenkyuubu - Ch.01
(C92) [Secret Society M (Kitahara Aki)] Utaha Another Bad End (Saenai Heroine no Sodatekata) [Chinese] [无毒汉化组]
(C78) [Secret Society M (Kitahara Aki)] Sayonara Nene-san (Love Plus) [English] {CEDR777}
[Secret Society M (Kitahara Aki)] Ōka-kyō Saki (Sakura Taisen 1)
(C67) [Secret Society M (Kitahara Aki)] Shintaku no Kairou | Oracle's Corridor (SoulCalibur) [English] [Kizlan]
[Kai Hiroyuki] Manatsu no Hanazono ~Oba + Shimai Ohame H~
(C78) [Secret Society M (Kitahara Aki)] Sayonara Nene-san (Love Plus)
Yoku Aru Kikkake to Hamarikata... | Wife's Cheating Vacation 1: Opportunities and Addictions
"Veronica to Kekkon shitai!" no Sentakushi ga nai no wa Okashii
[Kawai Shun] Dance! Tentacle Research Institute [English]
[Delta Studio] Onani Ippanka Shakai | Pro-Masturbation Society [English] [CulturedCommissions]
(C80) [Secret Society M (Kitahara Aki)] Anekishi no Shojo wa Hei-tachi no Mae de Chirasareta. (Super Robot Wars Z 2nd)
Two Girl's Suck-Suck Research Note
(Puniket 36) [Shounan Rakujin Society (e649ne)] "Veronica to Kekkon shitai!" no Sentakushi ga nai no wa Okashii (Various)
(C68) [Secret Society M (Kitahara Aki)] Helena-sama to Boku. (Dead or Alive)
(C52) [Secret Society M (Various)] Amai Mitsu no Imashime (Darkstalkers, Dororon Enma-kun)
[Amano Hidemi] Bourbon
The Fulfilling Life of a Man Who Gained the Power of Possession
Jiyuu Kenkyuu de Ochinchin o Shiraberaremashita | We Decided to Examine a Penis for Our Independent Research
[Kawai Shun] Odoru! Shokushu kenkyūjo (Omake manga) | Dance! Tentacle Research Center (Bonus Story) [English]
[Secret Society Chi (Iijima Mario)] Kai II - Iijima Mario Kojin-shi - (Various)
(C43) [Secret Society M (Kitahara Aki)] ANICE (Sonic Soldier Borgman)
(C65) [Secret Society M (Kitahara Aki)] Shintaku no Toriko (SoulCalibur)
Shoutai Bare no Nikubenki w Kikenbi NN de Zettai Haramasemasu
(C78) [Draw Go (Souichi)] Tokumei Research 1999 ~ Maya-chan Shinsou Kaimei File ~ (Occult Academy)
Attack on Research
(C57)[Secret Society M (Kitahara Aki)] Kore wo Koi to Iemashou ka? (True Love Story 2)
(C85) [Secret Society M (Kitahara Aki)] HOW TO BUILD NIKUBENKI (Gundam Build Fighters)
ZEON Lost War Chronicles - Gaiden no Daigyakushuu
(C73) [Secret Society M (Kitahara Aki)] Jane Conty Taii Kaikoroku Tettaisen. (Mobile Suit Gundam Lost War Chronicles)
Mars Ninsin.
Twilight's Research | 暮光学习计划
Onani Ippanka Shakai | Pro-Masturbation Society
(C46) [Secret Society M (Kitahara Aki, Minamino Marin)] Hitomi no Naka no Mirai (Fire Emblem Mystery of the Emblem)
Movie Research Lovers
(C94) [Secret Society M (Kitahara Aki)] Kousai Keiken Hitori Keiken Ninzuu 13-nin. (Bishoujo Senshi Sailor Moon)
[Hara Shigeyuki] Binyuchousain Ayako | Busty Researcher Ayako [English] {Tadanohito} [Digital]
Personality Insertion-Excretion
(C72) [Secret Society M (Kitahara Aki)] Utahime no Shouzou 4 (Dead or Alive) [English]
Nottori Toki ni Okiru Fuzuiiundo to Kinniku no Shikan | Why It's Better to Possess Someone at the Toilet
ZEON Lost War Chronicles
[Shinsekai Set (Hetaren)] Kurodate o Shiro ni Someru Seishoku Kenkyuu o (Blue Archive) | Sexual Gourmet Research: Dyeing Kurodate White [English] [Douzo Lad Translations]
[SOUND MILK (Otochichi)] Mahou Tsukai Sakusei Kenkyuu | Witch's Semen Milking Research (Mahou Tsukai Precure!) [English] [ATF] [Digital]
(CR33) [Secret Society M (Kitahara Aki)] Utahime no Shouzou 3 (Dead or Alive) [English] [Ayane]
(C83) [Secret Society M (Kitahara Aki)] Inyoku no Kan 2199 | Lust Battleship 2199 (Space Battleship Yamato 2199) [English] [doujin-moe.us]
(C93) [Secret Society M (Kitahara Aki)] Nakadashi Seishori Benki Rei-chan Shojo Soushitsu. (Bishoujo Senshi Sailor Moon) [Chinese] [无毒汉化组]
(C73) [Secret Society M (Kitahara Aki)] Doukoku no Ori (CLAYMORE)
(C70) [Himitsu Kessha M (Kitahara Aki)] ZEON Lost War Chronicles GCB (Gundam)
(C72) [Secret Society M (Kitahara Aki)] Utahime no Shouzou 4 (Dead or Alive)
(C74) [Secret Society M (Kitahara Aki)] Yousei Keikaku (Macross Frontier) [English]
(C71) [Secret Society M (Kitahara Aki)] Kinpatsu Tsuma no Toriko. (SoulCalibur)
Shintaku no Toriko
(ComiComi7) [KABAYAKIYA (Unagimaru)] High Society (Mujin Wakusei Survive)
[Kitahara Aki] AKURU
(C95) [Secret Society M (Kitahara Aki)] Shoutai Bare no Nikubenki w Kikenbi NN de Zettai Haramasemasu(^^) (Bishoujo Senshi Sailor Moon) [Chinese] [無邪気漢化組]
Dance! Tentacle Research Institute
(C85) [Secret Society M (Kitahara Aki)] HOW TO BUILD NIKUBENKI (Gundam Build Fighters) [Chinese] [魔劍个人汉化]
(C91) [Secret Society M (Kitahara Aki)] Ninshin Shichatta... Dareka "Tasukete". (Bishoujo Senshi Sailor Moon)
Beauty Pretty Society
(C66) [Himitsu Kessha M (Kitahara Aki)] ZEON Lost War Chronicles (Mobile Suit Gundam)
(C61) [Secret society M (Aki Kitahara)] Najica!! (Najica Blitz Tactics)
[Kawai Shun] Odoru! Shokushu Kenkyuujo | Dance! Tentacle Research Institute [English] [solowing]
Nakadashi Seishori Benki Rei-chan Shojo Soushitsu.
(C91) [Secret Society M (Kitahara Aki)] Ninshin Shichatta... Dareka "Tasukete". (Bishoujo Senshi Sailor Moon) [Chinese] [无毒汉化组]
Mercury no Shojo Soushitsu de Ippatsu Nukitai!
(C52) [Himitsu Kessha M (Kitahara Aki)] Amai Mitsu no Imashime (Darkstalkers )
Dorei Ogre no Ningen Shakai Kengaku | A Slave Ogre Visits Human Society