Operation Research Problem2

(C94) [AKKAN-Bi PROJECT (Yanagi Hirohiko)] OPERATION -V- (Gundam Build Divers)

Fellatio Research Department Epilogue

(SC58) [L'ARCHANGE (Kagutsuchi)] Vivid Momo Operation no Tame ni Isshiki Shimai ga Tokunou Mayonnaise-mamire de Ganbaru Hon (Vividred Operation)

Binyuchousain Ayako | Busty Researcher Ayako

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

BOKO BOKO OPERATION

Zettai ni Ikasetai Adult Goods Maker Kaihatsubu VS Zettai ni Ikanai Adult Goods Maker Eigyoubu | The Sales Rep Who Absolutely Won’t Come VS The Researcher Who Absolutely Wants to Make Her Come

[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)

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

JS Kenkyuukai | JS Research Seminar

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

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

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

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

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

[Uninigumi (Saji, Unini☆Seven)] Akane no Zenra Nakadashi Operation (Vividred Operation) [Digital]

[Yoshitakashi Athletic (Yasaka)] Chrono Kid TSURUGI: Operation Tights

(Tokyo Shock 2) [Operating Room (Puchida)] Honjitsu wa Heiten Itashimashita (Tokyo Ghoul) [Chinese] [沒有漢化]

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

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

(Shoku no Kyouen 2) [Operating Room (Puchida)] Touka-chan ga Mezamenai!! (Tokyo Ghoul) [Chinese] [沒有漢化]

Operation Kemonomimi Maids All Together!

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

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

[Umedama Nabu] Yume no Michikusa Daisakusen | Operation Detour From A Dream (Operation Daisakusen DS9) [English] =EMAJO=

Hypnosis Operation ~ With My Hypnosis The Women Passing By Are An All-I-Can-Fuck Buffet ~

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

(C80) [Maniac Street (Sugaishi, Oono)] Momoiro Operation (To LOVE-Ru) [English] [redCoMet]

(C74) [POC {Provisional Operations Command}(Hans)] Shokuou [English][Rabbit Reich]

[PASTEL WING (Kisaragi-MIC)] Hanihani Scrumble 2 -BLUE MAX- (School Rumble/Tsuki wa Higashi ni Hi wa Nishi ni ～Operation Sanctuary～)

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

[Camrism (Kito Sakeru)] Operation TTT (Kantai Collection -KanColle-) [Digital]

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

Momoiro Operation

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

[Special Week (Fujishiro Seiki)] Enkou Operation (Vividred Operation)

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

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

final round

GUNPARADE MARCH ULTRASONIC ATTACK! FIRST OPERATION. LEVEL E

Insect Research Institute 2

[Matsurioka Hideyuki] Reken ~Shinsoku Raper Domo~ | Rape Researches

Shiri Waki Niku Odoru!

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

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

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

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

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

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

OPERATION γ

Operation Futanari

(SC61) [Sorairo March (Narusawa Sora)] Sono Gakusai, Inran Otokonoko Kyakuhiki Chuui! [English]

Research of Barnaby Brooks Jr.

Operation having childeren

Idol Force Operation - Gaiden

(C66) [Hard Puncher Maniax (Shibahara Gocho)] Chihiro Under Size (Tsuki wa Higashi ni Hi wa Nishi ni ～Operation Sanctuary～)

OPERATION

(C71) [Chateau Dassault (S.SHIMIZU)] SUPER ROBOT OPERATION 01 (Super Robot Taisen)

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

(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]

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

OPERATION FAIL COMIC

Mousou Mini Theater 32

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

Love Operation

(C87) [YOU2HP (YOU2)] AkaRei☆Operation (Vividred Operation) [English] [Belldandy100] [Decensored]

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

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

[Red Axis] Vividark Opertion (Vividred Operation)

[Gin no Hoshitei (Tamiya Akito)] Reigou Sakusen Hatsudou! | Begin Operation Rei-go! (Kantai Collection -KanColle-) [English] [Digital]

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

Zecchou Kenkyuujo 2 | Orgasm Research Facility 2

(C78) [Kanmidokoro USB (Furiri)] Operation BAYTOWN (Strike Witches)

Dokidoki Occult Kenkyuubu | Heart Pounding Occult Research Club

(C80) [Maniac Street (Sugaishi, Oono)] Momoiro Operation (To LOVE-Ru) [English]

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

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

(C84) [real (As-Special)] HEAT (Vividred Operation) [English] [Yuri-ism]

[John K. Pe-ta] Geki!! Monzetsu Operation Plus [English] [Hentairules.net] [Decensored]

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

(C84) [Tridisaster (Saida Kazuaki)] Phichit Pants Operation (Vividred Operation) [English] [Tigoris Translates]

BROWNBOXverE

(SC58) [PIANIISHIMO (Pija)] Binbou Enkou Operation (Vividred Operation) [English]

Movie Research Lovers

Zecchou Kenkyuujo | Orgasm Research Facility

NORMAL OPERATION

AkaRei☆Operation

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

(C95) [I.S.O.P. (Kamui Aya)] OPERATION γ (Azur Lane)

Pike Bone Rescue Operation

Operators Secret Sex Files - Nian's Sex Addiction

(C90) [Omocha Kaden (Beni Bana)] Himawari ni Tane (Vividred Operation)

Dance! Tentacle Research Institute

(C84) [Genei Teito (Chouzetsu Yarou)] J・R・S (Vividred Operation)

Mahou Tsukai Sakusei Kenkyuu | Witch's Semen Milking Research

Operation Anis

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

OPERATION γ

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

[Mist Night (Co_Ma)] Operation Fail Comic 2

(C67) [Water Wheel (Shirota Dai)] Hesitates Operating System (OS-tan) [English] [SaHa]

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

(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]

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

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

Operation Fail [English] - Arniro111

Operation Futanari | 扶她行動

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

Syuen-tan Seiteki Hokaku Sakusen! | Operation Sexually Capturing Shuen!

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

[John K. Pe-ta] Geki!! Monzetsu Operation [English] [TCup] [Decensored]

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

(CR37) [Ashita wa Docchida! (Mikage Takashi)] Operation SR (School Rumble)

Operation Obvious

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

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

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

[Hisagoya (Momio)] BOKO BOKO OPERATION 2 (Girls und Panzer) [Digital]

Fellatio Kenkyuubu Blowjob Research Club Ch. 3

(COMIC1☆7) [LOFLAT (Prime)] Mor-san Gohoushi Daisakusen | Morgiana's I-want-to-serve-you operation (Magi: The Labyrinth of Magic) [English] [EHCove]

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

[Cheeseyeast (Naka)] Vacuum Ward -Vacuum Operation- (Touhou Project) [English] [TreePerception] [Digital]

Honjitsu wa Heiten itashi mashita

(C90) [Tamago no Kara (Shiroo)] -Operation Summer Fold Booklet-

[Yamada Gogogo] TS Shujutsu Mesu Niku Ishoku Kiroku | TS Operation File On A Female Body Transplant (2D Comic Magazine Seitenkan Shite Haramasarete Botebara End! Vol. 3) [English] [FC] [Digital]

Twilight's Research | 暮光学习计划

[Spirit Trilobite] A Doujin From Quite Long Ago (Girl Friend (Beta)) [English] [Venatör]

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

(C80) [Maniac Street (Sugaishi, Oono)] Momoiro Operation (To LOVE-Ru)

[Amuai Okashi Seisakusho (Siira Kaeru, Matsuzono)] Operator TS Akuochi Keikaku | Operator TS Project Downfall [English] {defski}

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

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

(C86) [JUNK STORY (Michairu)] PIECES (Vividred Operation)

MS2 Operation 13

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

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

(Shoku no Kyouen 2) [Operating Room (Puchida)] Touka-chan ga Mezamenai!! (Tokyo Ghoul)

Midnight Operator

operation futanari

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

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

[Umedama Nabu] Operation Daisakusen Voyager

[Shimesaba (Isaki)] Saba 10: Inu to Neko

H￮LOX Himitsu Kessha Keiei no Susume 01 | How to operate Secret Society H○LOX-01

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

(C86) [Jenoa Cake (Takayaki)] Agano no Kozukuri Daisakusen | The Operation to Impregnate Agano (Kantai Collection -Kancolle-) [English] [PSYN]

Operation Fail [Japanese] - Arniro111

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

OPERATION "SENDAI" ABDUCTION