A story about a girl named Kim Jiyoo who had a crush on BTS Park Jimin but he didn't seem to like her back. One day Bora Jimin's girlfriend broke up with him so Jimin found a way to make Bora jealous. He pretended to be in a relationship with Jiyoo so Bora would get jealous and go back to Jimin. Will Jimin stop pretending to be Jiyoo's boyfriend? Will Jimin fall in love with Jiyoo?