Operation Research Problem2

[Nightmare Express -Akumu no Takuhaibin-] Yokubou Kaiki Dai 510 Shou -Yobai Kan Mansion 01 Operator Musume MAYA 24-sai- [Chinese] [有条色狼汉化]

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

[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)

(SC60) [Mukousharan (Chiyami)] Tentacle Operation (Vividred Operation)

Dance! Tentacle Research Institute

OPERATION γ

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

Honjitsu wa Heiten itashi mashita

(Futaket 9) [Kirei na Oneesan (Yayoi Kirei)] Byubyured Operation (Vividred Operation)

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

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

Midnight Operator

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

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

(C87) [YOU2HP (YOU2)] AkaRei☆Operation (Vividred Operation) [Chinese] [师兄汉化]

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

OPERATION -V-

Back Cube Operation

(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]

Zecchou Kenkyuujo 2 | Orgasm Research Facility 2

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

(COMIC1☆10) [Hisagoya (Momio)] Boko Boko Sakusen desu! - BOKO BOKO OPERATION (Girls und Panzer)

(COMIC1☆7) [Rotary Engine (Kannazuki Motofumi)] Salmon Pink Operation (Vividred Operation)

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

Momoiro Operation

Yukemuri Kairaku Refresh Zenpen+Kouhen | 蒸汽快感大保健 前篇+后篇

[Department Y Research Institute] Rorisakyubasu Wa Ningen Ni Tsukamaruto Dō Naru No?

Fellatio Kenkyuubu | Blowjob Research Club

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

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

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

final round

Shiri Waki Niku Odoru!

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

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

(C68) [LiZ (Satomi Hinako)] Lovely Honey (Tsuki wa Higashi ni Hi wa Nishi ni ～Operation Sanctuary～)

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

[Cheeseyeast (Naka)] Vacuum Ward -Vacuum Operation- (Touhou Project) [Chinese] [无毒汉化] [Digital]

[Nagasaki-inter (Sou Akiko)] Tanetsuke! Pyupyutto! Operation! (Vividred Operation) [Digital]

(SC2016 Autumn) [Hisagoya (Momio)] BOKO BOKO OPERATION 2 (Girls und Panzer)

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

[Asanoya (Kittsu)] Seishinhoukai Surumade Kusugurimakutte Ryoujoku Shitemiru Test VI & VIII (Vividred Operation, Ore, Twintail ni Narimasu.) [Chinese] [Digital]

(COMIC1☆7) [SpiciaCrow (Kirisaki Mocori)] Momo no Okozukai Operation (Vividred Operation) [Sample]

[Sekai Kakumei Club (Ozawa Reido)] Shiri-Waki-Niku Odoru! (Vividred Operation)

(C93) [Dodoitsu. (Panco.)] Research Love Make Presentation | Research Lab x Expression (Motto! Hinekure Chaser 3) [English] [Pink Cherry Blossom Scans]

(C64) [Chimatsuriya Honpo (Arashiyama Tsugumoto, Asanagi Aoi)] LEVEL E Plus Gunparade March Ultrasonic Second Operation (Gunparade March)

(C87) [YOU2HP (YOU2)] Oh, the operation regulation of vivid red operation. [师兄汉化]

(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]

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

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

Dokidoki Occult Kenkyuubu | Heart Pounding Occult Research Club

Operators Secret Sex Files - Nian's Sex Addiction

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

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

[Zonda] Fellatio Kenkyuubu | Blowjob Research Club [English] [Uncensored] [head empty + RedLantern]

Ichizu na Hikoujouki no Kyuushutsu Sakusen | Single-minded Airfield Princess's Rescue Operation

Nanyou no Vacances Sakusen | Vacation-Operation in the South Seas

Zecchou Kenkyuujo | Orgasm Research Facility

GUNPARADE MARCH ULTRASONIC ATTACK! FIRST OPERATION. LEVEL E