Minzy and Lay were best friends and really close to each other. They were so close that they lived in one apartment. However, while living together, they drew a line and they easily maintained their relationship. But, Lay had a girlfriend who bullied Minzy and played around with Lay. Sometimes, Minzy had to hang out with Kai. But when Lay and Yoona broke up, Lay fell in love with Minzy and she proposed her feelings to him. But Kai proposed his feelings as well, but Minzy is in a dilemma. Find out what happens to them.