Kouenji Sayuka is an Escalayer, a guardian android designed to protect the world by having sex. But when some lesbian action with her assistant Madoka isn't doing the trick, it's clear Sayuka needs some extra help. Preferably involving dick.
Kyosuke never liked his step-mom and wants her out of the house after his dad died. Megumi proposes that Kyosuke can do anything he wants with her daughter, Yuna, if he allows them to stay. He allows them to stay.