Civil Engineering Operations

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

[Takahashi Itsumi] The Great Closet Operation (Yuri Hime Wildrose 3) [English]

(COMIC1☆4) [Akousoku Engine (Azumi Haruhito)] Sanapai (Kari) (Touhou Project)

Kimi ga Sore o Ai to Yonde mo - Even if you call it love 29

An ENGINE

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

Operation having childeren

(C85) [Rotary Engine (Kannazuki Motofumi)] Technobreak Company (Outbreak Company) [English] [Doki Fansubs]

(SC20) [The Latest Engine (Fujiyama Takashi)] TLE-PW01 (Soulcalibur)

(COMIC1☆9) [Rotary Engine (Kannazuki Motofumi)] Akenai Yoru (Yoru no Yatterman)

Yowakute New Game.

[Rotary Engine (Kannazuki Motofumi)] HIGHSCHOOL OF THE DATE (Date A Live)

Laura no Ketsu Ana Shugyou - Laura's Anal Sex Training

[Aoki Kanji] Hyper Mini Engine (Manga Bangaichi 2011-11) [English] {Hennojin}

[Little mantis (Kuloamaki)] Itazura Engine #2

[Korotsuke] Nekura Megane ♀

(C89) [Rotary Engine (Kannazuki Motofumi)] Chimahame (Gochuumon wa Usagi desu ka?)

OPERATION "SENDAI" ABDUCTION

打工人之梦

[Asanoya (Kittsu)] Seishinhoukai Surumade Kusugurimakutte Ryoujoku Shitemiru Test VI -Tarushiri- (Vividred Operation) [Digital]

(C75) [Aruma Therapy (Arumaji Nebukuro)] Shiru Dark Operator (Gundam 00)

[Korotsuke] Nekura Megane ♀

milking Ch. 1-3

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