(C80) [Maniac Street (Sugaishi, Oono)] Momoiro Operation (To LOVE-Ru) [English][Decensored]
(COMIC1☆10) [Hisagoya (Momio)] BOKO BOKO OPERATION (Girls und Panzer) [Chinese] [贝尔西行寺X想抱雷妈汉化组]
[Ogawa Kanran] Yoi Kono Jiyuu Kenkyuu | Independent Research Time [English] [Jojo]
Touka-chan ga Mezamenai!!
[Hisagoya (Momio)] BOKO BOKO OPERATION 2 (Girls und Panzer) [Digital]
(C87) [YOU2HP (YOU2)] AkaRei☆Operation (Vividred Operation)
[Horn/Wood] Ansel no Operator Care (Arknights)
[Kawai Shun] Odoru! Shokushu kenkyūjo (Omake manga) | Dance! Tentacle Research Center (Bonus Comic) [English]
[Kawai Shun] Odoru! Shokushu Kenkyuujo "Naedoko" Hen | Dance! Tentacle Research Center - Seedbed-hen [English] [solowing]
Fellatio Kenkyuubu - Fellatio Research Department
(Puniket 33) [KURUBUSI-KAI (Shinshin)] Dopyutto Pyutto Nama Lotion (Vividred Operation)
Operation Vore Comic
[Tecchan] Please, Onii-chan [English] [SaHa]
SUPER ROBOT OPERATION 01
[True RIDE (Shinjitsu)] Muratto Hip Operation (Vividred Operation) [English] [Na-Mi-Da]
(C90) [Tamago no Kara (Shiroo)] -Operation Summer Fold Booklet-
Zecchou Kenkyuujo | Orgasm Research Facility
(SC36) [AXZ (Ryuuta)] Angel's Tail Operation Iinchou no Ninshin Daisakusen
(COMIC1☆11) [Showa Saishuu Sensen (Hanauna)] Kamiyama Koukou Omanko Kenkyuukai Katsudou Kiroku | Kamiyama Highschools Vagina Research Society Activity Record (Hyouka) [English] [Doujins.com]
Operation Fail - Arniro111
[John K Pe-ta] Awakened Girl The First | Geki!! Monzetsu Operation Plus Bonus Chapter [English]
(SC58) [PIANIISHIMO (Pija)] Binbou Enkou Operation (Vividred Operation) [English]
Love Operation
(C89) [Operating Room (Puchida)] Kitaru Mirai no Himitsugoto - Secret Events of the Coming Future (Tokyo Ghoul) [Sample]
[Amuai Okashi Seisakusho (Siira Kaeru, Matsuzono)] Operator TS Akuochi Keikaku | Operator TS Project Downfall [English] {defski}
[Underwhite (broiler)] Kakei ga Kurushii (Vividred Operation) [Digital]
(C66) [Hard Puncher Maniax (Shibahara Gocho)] Chihiro Under Size (Tsuki wa Higashi ni Hi wa Nishi ni ~Operation Sanctuary~)
[+14 (Chuuta)] Pekepeke Operation (Vividred Operation) [Digital]
Operator TS Akuochi Keikaku
BOKO BOKO OPERATION 2 {Hennojin}
Girls und Panties - Initiating Operation FapFap!
[Shiranui Research Institute (Shiranui)] Shiranuhi Ninpo cho ichi-kan (King of Fighters, Street Fighter) [Digital]
(COMIC1☆7) [Aerodog (inu)] Aru Hi no Isshiki Shimai (Vividred Operation)
(COMIC1☆7) [Circle ARE (Cheru, Kasi)] BiBittored Operation (Love Live!) [English] [NEETouRyu Dojo]
(COMIC1☆7) [Kaname (Siina Yuuki)] Motto Momotto Motto Operation (Vividred Operation)
Twilight's Research | 暮光学习计划
(C86) [tomatohouse905's room (Urabi)] Be United, Please!! Extra Operation ☆ (Arpeggio of Blue Steel, Kantai Collection -KanColle-) [English] {doujin-moe.us}
[Kawai Shun] Odoru! Shokushu kenkyūjo (Omake manga) | Dance! Tentacle Research Center (Bonus Story) [English]
[PASTEL WING (Kisaragi-MIC)] Hanihani Scrumble (Tsuki wa Higashi ni Hi wa Nishi ni ~Operation Sanctuary~/School Rumble)
[Hroz] Succubus no Ningen Kenkyuu | Human Research by a Succubus [English] [thetsuuyaku + 4dawgz]
Shiri Waki Niku Odoru!
(C86) [Kaiten Sommelier (13.)] Shiritsu Risshin Gakuen Oshiri no Nama Onaho Sakusen. | Private Risshin Academy Operation "Living Anal Sleeve" (Shiritsu Risshin Gakuen ~Seishori Iin Soushuuhen~) [English] [biribiri]
(C84) [Genei Teito (Chouzetsu Yarou)] J・R・S (Vividred Operation)
Yuri-ken Beit Boshuuchuu Soushuuhen | Yuri's Lab Wants Research Assistants
(C85) [Pokopen-Honpo (Shikato Miyo)] Himawari-chan ga Oji-san ni Tondemonai Koto o Sareru Hanashi (Vividred Operation)
[Dosukoi Jinja (Nakamura Osawari Kun)] Vividhit Operation (Vividred Operation) [Digital]
[Department Y Research Institute] Bōkoku ōjo no matsuro
(C87) [YOU2HP (YOU2)] AkaRei☆Operation (Vividred Operation) [English]
OPERATION FAIL COMIC
(C86) [tomatohouse905's room (Urabi)] Be United, Please!! Extra Operation ☆ (Arpeggio of Blue Steel, Kantai Collection -KanColle-)
[Amuai Okashi Seisakusho (Siira Kaeru, Matsuzono)] Operator TS Akuochi Keikaku
[Asanoya (Kittsu)] Seishinhoukai Surumade Kusugurimakutte Ryoujoku Shitemiru Test VI -Tarushiri- (Vividred Operation) [Chinese] [Digital]
Two Girl's Suck-Suck Research Note
Momoiro Operation
[AKKAN-Bi PROJECT (Yanagi Hirohiko)] OPERATION -V- (Gundam Build Divers) [Digital]
Operation TTT
[Ryuuga Sin] Tonari no AV Tsuma (COMIC MUJIN 2013-03) [English] [Sandwhale]
(C84) [Tridisaster (Saida Kazuaki)] Phichit Pants Operation (Vividred Operation) [English] [Tigoris Translates]
[Auroramix (Shigekix)] Operation "Sendai" Abduction (Kantai Collection -KanColle-) [Digital]
(Tokyo Shock 2) [Operating Room (Puchida)] Honjitsu wa Heiten Itashimashita (Tokyo Ghoul) [English] [EHCOVE]
BodyBox
(C80) [Maniac Street (Sugaishi, Oono)] Momoiro Operation (To LOVE-Ru) [English]
[Dokurosan] Eiken Lovers | Movie Research Lovers (COMIC Tenma 2009-05 Vol. 132) [English] [Brolen]
(C83) [Titokara 2nd Branch (Manami Tatsuya)] Momoiro Operation (Vividred Operation)
(C89) [Joukitei (Urase Shioji)] Nanyou no Vacances Sakusen | Vacation-Operation in the South Seas (Kantai Collection -KanColle-) [English] [desudesu]
Byubyured Operation
(COMIC1☆7) [Asatsuki Dou (Youta)] Isshiki Momo Ganbarimasu (Vividred Operation)
[Kameneji] Himawari-chan ga Kodane o Saishu (Vividred Operation) [Digital]
(COMIC1☆7) [Spec.C (Akeno Minato)] DokiDokiDocking! (Vividred Operation)
(C97) [casis-kabosu (Aria.)] Maid na Kanojo wa Ore no Hanashi o Kikanai! (Cafe Stella to Shinigami no Chou) [English] [Crack Team Operations]
[Minamida Usuke] Dokidoki Eizou-Kenkyuu-Bu | Steamy Cinema Studies and Research Club (COMIC HOTMILK 2017-01) [English] [Digital] [Incomplete]
[P tag] [Inazuma] Sanma no Hone Kyuushutsu Sakusen | [Inazuma] Pike Bone Rescue Operation (Kantai Collection -KanColle-) [English]
[Mitsui Jun] OPERATION L-L-P | Operation Love Love Picnic (Shounen Ai No Bigaku 16 The Bokura no Ensoku) [English] [SG2]
Honjitsu wa Heiten itashi mashita
[Zonda] Fellatio Kenkyuubu Ch. 3 | Blowjob Research Club Ch. 3 (COMIC Mugen Tensei 2022-02) [English] [Sloppy Seconds] [Digital]
(C80) [Digital Accel Works (INAZUMA)] INAZUMA Jiyuu Kenkyuu | INAZUMA Research Project (PreCure) [English] {5 a.m.}
NORMAL OPERATION
[Mist Night] Operation Vore Comic (Vividred Operation)
(COMIC1☆7) [K-Drive (Narutaki Shin)] VIVID・MIX (Vividred Operation)
[John K. Pe-ta] Geki!! Monzetsu Operation
operation futanari
(C87) [YOU2HP (YOU2)] AkaRei☆Operation (Vividred Operation) [Chinese] [师兄汉化]
[Nagasaki-inter (Sou Akiko)] Tanetsuke! Pyupyutto! Operation! (Vividred Operation) [Digital]
(Shoku no Kyouen 2) [Operating Room (Puchida)] Touka-chan ga Mezamenai!! (Tokyo Ghoul)
Mahou Tsukai Sakusei Kenkyuu | Witch's Semen Milking Research
(C101) [Marosaan (Yunamaro)] Musashi-san no Yoru Jijou Shoubu Shitagi Daisakusen Hen | Musashi-san's Nightly Affair - Lucky Underwear Operation Chapter (Kantai Collection -KanColle-) [English] [DKKMD Translations]
(C94) [AKKAN-Bi PROJECT (Yanagi Hirohiko)] OPERATION -V- (Gundam Build Divers)
(C86) [Jenoa Cake (Takayaki)] Agano no Kozukuri Daisakusen | The Operation to Impregnate Agano (Kantai Collection -Kancolle-) [English] [PSYN]
Movie Research Lovers
[Cheeseyeast (Naka)] Vacuum Ward -Vacuum Operation- (Touhou Project) [Chinese] [无毒汉化] [Digital]
[Red Axis] Vividark Opertion (Vividred Operation)
[Tempuru] Albedo & Sucrose's Isekai Observation Research Report
BOKO BOKO OPERATION
Kitaru Mirai no Himitsugoto
(Tokyo Shock 2) [Operating Room (Puchida)] Honjitsu wa Heiten Itashimashita (Tokyo Ghoul) [Chinese] [沒有漢化]
(COMIC1☆7) [G-Power! (SASAYUKi)] No Title #03 (Vividred Operation) [English] [CGrascal]
[Gekkouya] Manman no Ki [Chinese] [月熙汉化组]
Fellatio Kenkyuubu | Blowjob Research Club
Rakka no Alpha Ou | 硕果的α王 Ch. 1-3
AkaRei☆Operation
Operation Fail [Japanese] - Arniro111
[Spirit Trilobite] A Doujin From Quite Long Ago (Girl Friend (Beta)) [English] [Venatör]
(C78) [Yo wa Okazu wo Shomou Shiteoru (Shian)] Onna Kenkyuuin no Ijou na Aijou | A Female Researcher's Abnormal Desire [English] =LWB=
[John K Pe-ta] Geki!! Monzetsu Operation Plus
Fellatio Kenkyuubu Ch. 3 | Blowjob Research Club Ch. 3
Operation Anis
[John K Pe-Ta] Geki!! Monzetsu Operation Plus | The Bitch and the Magnum [English] [_ragdoll]
Pike Bone Rescue Operation
(COMIC1☆7) [SpiciaCrow (Kirisaki Mocori)] Momo no Okozukai Operation (Vividred Operation) [Sample]
(Futaket 8) [Terikoya (Buri)] Operation Futanari (Street Fighter) [English] =SW=
(C90) [Tamago no Kara (Shiroo)] -Operation Summer Fold Booklet- [English] [B.E.C. Scans]
(C77) [Operation Panel (Magiko)] Extra Turn (Shin Megami Tensei: Devil Survivor)
(C87) [YOU2HP (YOU2)] AkaRei☆Operation (Vividred Operation) [English] [Belldandy100] [Decensored]
(C95) [I.S.O.P. (Kamui Aya)] OPERATION γ (Azur Lane)
JS Kenkyuukai | JS Research Seminar
(CR37) [HYPER BRAND (Ishihara Masumi)] Operation Ragnarok ~Kind Lady~ (Ragnarok Online)
(SC2016 Autumn) [Hisagoya (Momio)] BOKO BOKO OPERATION 2 (Girls und Panzer)
OPERATION
(COMIC1☆7) [Rotary Engine (Kannazuki Motofumi)] Salmon Pink Operation (Vividred Operation)
Geki!! Monzetsu Operation
(COMIC1☆7) [G-Power! (SASAYUKi)] No Title #03 (Vividred Operation) [English] [SMDC]
[Asanoya (Kittsu)] Seishinhoukai Surumade Kusugurimakutte Ryoujoku Shitemiru Test VI -Tarushiri- (Vividred Operation) [Digital]
Midnight Operator
Manga Research Triangle
[DL Mate] Saimin Sousa ~Saiminjutsu de Toorisugari no Joshi-tachi o Yaritai Houdai!~ | Hypnosis Operation ~ With My Hypnosis The Women Passing By Are An All-I-Can-Fuck Buffet ~ [English] [HHwolf]
Hypnosis Operation ~ With My Hypnosis The Women Passing By Are An All-I-Can-Fuck Buffet ~
[廢人生活(Rai)] HOLOX Himitsu Kessha Keiei no Susume 01 | How to operate Secret Society H○LOX-01 (Laplus Darknesss) [English] [Digital]
Nanyou no Vacances Sakusen | Vacation-Operation in the South Seas
(SC58) [L'ARCHANGE (Kagutsuchi)] Vivid Momo Operation no Tame ni Isshiki Shimai ga Tokunou Mayonnaise-mamire de Ganbaru Hon (Vividred Operation)
Ichizu na Hikoujouki no Kyuushutsu Sakusen | Single-minded Airfield Princess's Rescue Operation
(C78) [Draw Go (Souichi)] Tokumei Research 1999 ~ Maya-chan Shinsou Kaimei File ~ (Occult Academy)
[Department Y Research Institute] Gen'ō No Seidorei-Chan De Asobou!
Adult Goods Tanchiki ~Machi no Inran Onna o Research Seyo~
[Camrism (Kito Sakeru)] Operation TTT (Kantai Collection -KanColle-) [Digital]
[Noise] Chinko no Jiyuu Kenyuu | Dick Research Project (COMIC LO 2019-05) [English] [Doki Fansubs] [Digital]
Zecchou Kenkyuujo 2 | Orgasm Research Facility 2