Yuuki Narito is seated beside Yui Takatsuki, a classmate notorious for getting boys to fall for her and rejecting them once they confess. Everyone expects Yuuki to become her next target, including Yui herself. The problem is that Yuuki is too oblivious to respond the way her usual admirers do. His lack of reaction unsettles Yui’s confidence and turns what was supposed to be another easy game into her increasingly determined effort to make him notice her at all.