[Tecchan] Please, Onii-chan [English] [SaHa]

[True RIDE (Shinjitsu)] Muratto Hip Operation (Vividred Operation) [English] [Na-Mi-Da]

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

Pippintopinto Operation

Geki!! Monzetsu Operation

[Mist Night (Co_Ma)] Doodles Comics 1-4

(COMIC1☆10) [Hisagoya (Momio)] BOKO BOKO OPERATION (Girls und Panzer) [English] {Hennojin}

Boko Boko Sakusen desu! - BOKO BOKO OPERATION

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

Zecchou Kenkyuujo | Orgasm Research Facility

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

[Dosukoi Jinja (Nakamura Osawari Kun)] Vividhit Operation (Vividred Operation) [Digital]

BOKO BOKO OPERATION 2 {Hennojin}

Vividark Opertion | 插件

BOKO BOKO OPERATION 2

VPO VIVID PURPLE OPERATION

[Tanmatsu Ijou (BadHanD)] Byakko no Mori Sono Hachi [English] {biribiri} [Digital]

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

(C89) [Operating Room (Puchida)] Kitaru Mirai no Himitsugoto - Secret Events of the Coming Future (Tokyo Ghoul)

Operation TTT

[Take] Operation Decoy

[AKKAN-Bi PROJECT (Yanagi Hirohiko)] OPERATION -V- (Gundam Build Divers) [Digital]

(C58) [RED RIBBON REVENGER (Various)] Elf's Ear Book 1 - Ao no Taikai ~Operation Ocean Blau~ (Star Ocean 2)

[Agata] OneShota Volley Shigoki Heya de Mou Tokkun! | OneShota Volleyball Intense Training in the Training Room! (COMIC Shingeki 2015-06) [English] [Lazarus H]

OPERATION γ

[Mist Night (Arniro)] Hell Of Swallowed [Operation fail Rei] [English]

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

[廢人生活(Rai)] HOLOX Himitsu Kessha Keiei no Susume 01 | How to operate Secret Society H○LOX-01 (Laplus Darknesss) [English] [Digital]

Yokubou Kaiki Dai 510 Shō - Yobai Kan Manshon 01 Operēta Musume MAYA 24-Sai -

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

TS Shujutsu Mesu niku Ishoku Kiroku | TS Operation File On A Female Body Transplant

(COMIC1☆7) [Circle ARE (Cheru, Kasi)] BiBittored Operation (Love Live!)

[Hisagoya (Momio)] BOKO BOKO OPERATION (Girls und Panzer) [Digital]

[Hara Shigeyuki] Binyuchousain Ayako | Busty Researcher Ayako [English] {Tadanohito} [Digital]

Operation TTT

Haruna no Ninshin Daisakusen | Haruna’s Operation: Creampie

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

[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

(CT31) [Studio P.M.Y (Mikarin)] Operation having childeren (Azur Lane) [English] [Unforgotten]

Dance! Tentacle Research Center - Seedbed-hen

(COMIC1☆7) [K-Drive (Narutaki Shin)] VIVID・MIX (Vividred Operation)

[John K Pe-ta] Geki!! Monzetsu Operation Plus

(COMIC1☆7) [Aerodog (inu)] Aru Hi no Isshiki Shimai (Vividred Operation)

[True RIDE (Shinjitsu)] Muratto Hip Operation (Vividred Operation)

(SC58) [PIANIISHIMO (Pija)] Binbou Enkou Operation (Vividred Operation) [Chinese] [黑条汉化]

(C84) [Rakkasei (Shinozaki Mizu)] Vivid-Green Ignition! (Vividred Operation)

(C90) [Tamago no Kara (Shiroo)] -Operation Summer Fold Booklet- [English] [B.E.C. Scans]

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

(C103) [cloudair (Katsuto)] Alola Okozukai Daisakusen! - Alola-Style Operation to get Pocket Money Sugar Dating (Pokémon Sun and Moon)

I got the power of the God-class who I'm manipulating people for geeks! ~ Stop, operation, emotion control

(COMIC1☆10) [Hisagoya (Momio)] BOKO BOKO OPERATION (Girls und Panzer) [Chinese] [贝尔西行寺X想抱雷妈汉化组]

[Umedama Nabu (Tsurikichi Doumei)] Isshintou Daisakusen | First Degree of Kinship Strategy (Shin Operation Daisakusen TNG Chapter 6) [ENG] [Yoroshii]

(COMIC1☆9) [Detox-Girls (Akai Hoya)] ALDNOAH.ERO (Aldnoah.Zero, Vividred Operation) [English] [CGrascal]

final round

Operation Kemonomimi Maids All Together!

(SC60) [Garou Kissa Hapido (Takeshita Kenjirou)] Renai Shoshinsha Mark (Vividred Operation)

Honjitsu wa Heiten Itashimashita

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

(COMIC1☆7) [Asatsuki Dou (Youta)] Isshiki Momo Ganbarimasu (Vividred Operation)

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

Honjitsu wa Heiten itashi mashita

Kawashima Momo to Koyama Yuzu no Sennyuu! Seishidan-kou Daisakusen | Momo Kawashima and Yuzu Koyama's Infiltration! Operation Blue Division Highschool

[Kaname (Siina Yuuki)] Momotto Motto Operation (Vividred Operation) [Digital]

(COMIC1☆7) [G-Power! (SASAYUKi)] No Title #03 (Vividred Operation) [English] [CGrascal]

Reigou Sakusen Hatsudou! | Begin Operation Rei-go!

Momoiro Operation

Mousou Mini Theater 32

(HaruCC18) [DSB Style (Azuse)] Yobai x Rankou Operation (Vividred Operation)

(COMIC1☆7) [Tokinochaya (Tokino)] Vividred Education (Vividred Operation)

(Puniket 33) [KURUBUSI-KAI (Shinshin)] Dopyutto Pyutto Nama Lotion (Vividred Operation)

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

[Tikisou Takeda] Nyan Nyan Dai Sakusen | Nyan Nyan Operation (Canopri Comic 2012-11 Vol.25) [English] {DesuDesu} [Digital]

(C87) [YOU2HP (YOU2)] AkaRei☆Operation (Vividred Operation)

[Umedama Nabu] Shin Operation Daisakusen TNG

(Futaket 8) [Terikoya (Buri)] Operation Futanari (Street Fighter)

Fellatio Research Department Epilogue

BROWNBOXverE

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

[OperatingRoom (Puchida)] トーカちゃんが目覚めない!!(Tokyo Ghoul)sample

(Futaket 8) [Terikoya (Buri)] Operation Futanari (Street Fighter) [English] =SW=

Girls und Panties - Initiating Operation FapFap!

(SC2016 Autumn) [Hisagoya (Momio)] BOKO BOKO OPERATION 2 (Girls und Panzer) [English] {Hennojin}

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

(C84) [Stylish Marunage (Patricia)] Liquid White Operation (Vividred Operation)

Zecchou Kenkyuujo 2 Orgasm Research Facility 2

Operation TTT

(COMIC1☆7) [G-Power! (SASAYUKi)] No Title #03 (Vividred Operation)

[BruLee] Operation Anis (NIKKE: The Goddess of Victory) [English]

(C72) [AXZ (Ryuuta)] Angel's Tail Operation 02 Onna Kyoushi no Seikyouiku Chou Sakusen

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

[Department Y Research Institute] Bōkoku ōjo no matsuro

[Red Axis] Vividark Opertion (Vividred Operation)

Attack on Research

Magical Occult Research Girl Defeated

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

Dance! Tentacle Research Institute

(C83) [Titokara 2nd Branch (Manami Tatsuya)] Momoiro Operation (Vividred Operation)

[+14 (Chuuta)] Pekepeke Operation (Vividred Operation) [Digital]

Operation Daisakusen

OPERATION

(C68) [Sumomo Dou (Sumomo EX)] Vivian Bessatsu. 27 Itsuwari no Kage Sinon Monzetsu Hen (Starship Operators)

Operation Fail [English] - Arniro111

(C86) [tomatohouse905's room (Urabi)] Be United, Please!! Extra Operation ☆ (Arpeggio of Blue Steel, Kantai Collection -KanColle-) [Chinese] [空気系☆漢化]

(C86) [tomatohouse905's room (Urabi)] Be United, Please!! Extra Operation ☆ (Arpeggio of Blue Steel, Kantai Collection -KanColle-)

[Umedama Nabu] Operation Daisakusen

[操作パネル] フィンネルをくんかくんかぺろぺろちゅっちゅするほん。(アルトネリコ3)

[Amuai Okashi Seisakusho (Siira Kaeru, Matsuzono)] Operator TS Akuochi Keikaku

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

(C86) [JUNK STORY (Michairu)] PIECES (Vividred Operation) [English] =LWB=

[Mitsui Jun] OPERATION L-L-P | Operation Love Love Picnic (Shounen Ai No Bigaku 16 The Bokura no Ensoku) [English] [SG2]