With no fixed sexual partner, the single Miki Sousuke, whose life motto is “work and private life should be chic”, went about his one-night stand plans as usual. However, what awaited him was his subordinate, the handsome top-dog of the department, Kai Tooru. Three months ago, Miki slept with Kai, treating him like any other one-night stand partner. Now, Kai sticks to Miki every day, while Miki avoids Kai like a plague, using any means possible to make Kai hate him. “Ahhh! What should I do to stop you from haunting me?!”