(C89) [Operating Room (Puchida)] Kitaru Mirai no Himitsugoto - Secret Events of the Coming Future (Tokyo Ghoul)
Operation Futanari
[Shimesaba (Isaki)] Saba 10: Inu to Neko
(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]
Zecchou Kenkyuujo 2 Orgasm Research Facility 2
(C89) [Operating Room (Puchida)] Kitaru Mirai no Himitsugoto - Secret Events of the Coming Future (Tokyo Ghoul) [Sample]
Yokubou Kaiki Dai 510 Shō - Yobai Kan Manshon 01 Operēta Musume MAYA 24-Sai -
(C75) [Aruma Therapy (Arumaji Nebukuro)] Shiru Dark Operator (Gundam 00)
Manga Research Triangle
BodyBox
(SC58) [L'ARCHANGE (Kagutsuchi)] Vivid Momo Operation no Tame ni Isshiki Shimai ga Tokunou Mayonnaise-mamire de Ganbaru Hon (Vividred Operation)
[Hisagoya (Momio)] BOKO BOKO OPERATION (Girls und Panzer) [Digital]
[Mist Night (Arniro)] Hell Of Swallowed [Operation fail Rei]
Gochastar
Idol Force Operation - Gaiden
(COMIC1☆7) [SpiciaCrow (Kirisaki Mocori)] Momo no Okozukai Operation (Vividred Operation) [Sample]
(COMIC1☆7) [Aerodog (inu)] Aru Hi no Isshiki Shimai (Vividred Operation)
JS Kenkyuukai | JS Research Seminar
(C78) [Kanmidokoro USB (Furiri)] Operation BAYTOWN (Strike Witches)
[P tag] [Inazuma] Sanma no Hone Kyuushutsu Sakusen | [Inazuma] Pike Bone Rescue Operation (Kantai Collection -KanColle-) [English]
(C84) [Kacchuu Musume (Yukiyanagi)] Shingeki no Kenkyuu | Attack on Research (Shingeki no Megami) (Shingeki no Kyojin) [English] [CGRascal]
(C85) [Pokopen-Honpo (Shikato Miyo)] Himawari-chan ga Oji-san ni Tondemonai Koto o Sareru Hanashi (Vividred Operation)
Ela no Sakusen Kiroku | Ela's Operation Log
(C85) [JUNK STORY (Michairu)] Hearts (Vividred Operation) [English] [Yuri-ism]
Dokidoki Occult Kenkyuubu | Heart Pounding Occult Research Club
(C84) [Genei Teito (Chouzetsu Yarou)] J・R・S (Vividred Operation)
Fellatio Research Department Epilogue
Operation Fail [Japanese] - Arniro111
[1bit (yuyu)] Igyou Seibutsu Zukan Michi no Kenkyuu Kikan Hen I | Illustrated Adulteration of Deformed Organisms: Unknown Research Institution, I [English]
(SC36) [AXZ (Ryuuta)] Angel's Tail Operation Iinchou no Ninshin Daisakusen
(SC2016 Autumn) [Hisagoya (Momio)] BOKO BOKO OPERATION 2 (Girls und Panzer) [Chinese] [脸肿汉化组]
[Umedama Nabu] Operation Daisakusen Voyager
(Shoku no Kyouen 2) [Operating Room (Puchida)] Touka-chan ga Mezamenai!! (Tokyo Ghoul)
Hell of Operation
[Matsurioka Hideyuki] Reken ~Shinsoku Raper Domo~ | Rape Researches
BOKO BOKO OPERATION 2 {Hennojin}
Twilight's Research | 暮光学习计划
(ComiComi17) [Hikari no Tomoshibi (Kousoku)] Shokushu to Doki Doki Operation!! (Vividred Operation)
Fellatio Kenkyuubu | Blowjob Research Club Ch. 2
[AKKAN-Bi PROJECT (Yanagi Hirohiko)] OPERATION -V- (Gundam Build Divers) [Digital]
Fellatio Research Department | Fellatio Kenkyuubu - Ch.01
(C86) [tomatohouse905's room (Urabi)] Be United, Please!! Extra Operation ☆ (Arpeggio of Blue Steel, Kantai Collection -KanColle-)
Vividark Opertion | 插件
[Nagasaki-inter (Sou Akiko)] Tanetsuke! Pyupyutto! Operation! (Vividred Operation) [Digital]
Adult Goods Tanchiki ~Machi no Inran Onna o Research Seyo~
Kamiyama Koukou Omanko Kenkyuukai Katsudou Kiroku | Kamiyama Highschools Vagina Research Society Activity Record
Titokara 2nd Branch Soushuuhen 2012-2015
Fellatio Kenkyuubu Blowjob Research Club Ch. 3
[Eichi Jijou (Takamiya)] Seishun Radio Station!! One-Open Buchou no Mugi-kun to Shinnyuu Buin no Kannai-kun | Youth Radio Station!! Oneman-operation manager Mugi-kun and new member Kannai-kun [English]
(COMIC1☆7) [G-Power! (SASAYUKi)] No Title #03 (Vividred Operation)
TS Shujutsu Mesu niku Ishoku Kiroku | TS Operation File On A Female Body Transplant
[Gin no Hoshitei (Tamiya Akito)] Reigou Sakusen Hatsudou! | Begin Operation Rei-go! (Kantai Collection -KanColle-) [English] [Digital]
[John K Pe-ta] Geki!! Monzetsu Operation Plus
[Hara Shigeyuki] Binyuchousain Ayako | Busty Researcher Ayako [English] {Tadanohito} [Digital]
(C86) [JUNK STORY (Michairu)] PIECES (Vividred Operation)
Operation Fail [English] - Arniro111
[SOUND MILK (Otochichi)] Mahou Tsukai Sakusei Kenkyuu | Witch's Semen Milking Research (Mahou Tsukai Precure!) [English] [ATF] [Digital]
[Attamaro. (Kotatsu.)] Vivid Yellow Pepe Lotion (Vividred Operation)) [Digital]
[Ryuuga Sin] Tonari no AV Tsuma (COMIC MUJIN 2013-03) [English] [Sandwhale]
(C74) [POC {Provisional Operations Command}(Hans)] Shokuou [English][Rabbit Reich]
[John K Pe-Ta] Geki!! Monzetsu Operation Plus | The Bitch and the Magnum [English] [_ragdoll]
[廢人生活(Rai)] HOLOX Himitsu Kessha Keiei no Susume 01 | How to operate Secret Society H○LOX-01 (Laplus Darknesss) [English] [Digital]