Mizuka, who works in a deli, is so poor that she has to work an extra part-time job to support herself, and she is also plain and has no experience in love. One day, however, Sakuya, a handsome vice-president whom she meets at her part-time job, suddenly takes her out on a date and gives her a fancy dress and a lavish dinner. In addition, an unforeseen situation occurs and she ends up living with him in his luxury apartment! The gentle, sweet, and sometimes wicked Sakuya is the most exciting person to live with!