A tsundere high school couple have some fairly vanilla sex, followed by the very un-vanilla saga of Kyouko’s infidelity to her husband, and her step-son Takuya’s quest to bring the whore to justice.
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.