Tomonori, an unmarried salaryman, was living an ordinary life, but one day his male friend Nozomu became a succubus!! Though Tomonori doesn't know how to return him back to his original form, he decides to let Nozomu live with him for the time being. However, Nozomu is ridiculously naughty and it's incredibly difficult for Tomonori to endure as a man...!

A romantic comedy that will challenge the limits of one's reason as Tomonori endures in many ways, all while the former male succubus gets dangerously too close!