Love is forbidden. When you turn 16, the government will assign your marriage partner. After your 16th birthday, you received a government notice that you are assigned to be with your cold and arrogant classmate, Yusuke Nisaka. Next day in class, when you approach Yusuke, he starts to be distant from you, making you hard to approach him. (But you don't know he has a crush on a guy... and Yusuke is surprisingly submissive...)