Miwa. Both incredibly beautiful and kind, she captured Takashi's heart long before she ever agreed to marry his brother. And now that she's Satoshi's wife, Takashi sees her every day. Sees her with him. Hears her having sex with him through the bedroom wall. And each day Takashi’s jealousy towards his brother grows a little more.

But it seems the tables may turn when Takashi's voluptuous college professor discovers that Takashi scores in one way over his brother: his sexual prowess. Now with the right clothing, the right hairstyle, and lots and lots of hands-on sexual tutoring, she’s going to turn Takashi into a ladies' man that even his brother will envy!

Earth is in grave danger, as evil aliens have set their designs on the planet. The only hope is Sayuka, the Escalayer, a "fully-functional" android who gains super-powers when she's aroused. But there's one problem: the lesbian sex Sayuka routinely engages in with her assistant Madoka is no longer serving its purpose. As the aliens send a dangerous new robot to Earth, the situation becomes critical.

Sayuka Kouenji is an Escalyer, a guardian android powered by a "Doki Doki Dynamo" that gives her super powers when she's turned on. But when lesbian sex with her able assistant Madoka stops doing the trick, Sayuka needs some help to save the world. To make matters worse, the forces of darkness have sent a new android to earth, and she's equipped with some "optional extras" attached. Enter Kyohei, a young student with no shortage of bedmates. Can Kyohei bring Sayuka to new heights of pleasure before her new enemy attacks?