You are a fat girl at school, no one plays with you because of your fat body, but you have only one close friend, Choi Yeonjun, he is the school's hotboy, tall and good at studying, but he is pretty cold and arrogant to others, but to you, he is like an active and lively person.

One day you were going to school and you accidentally bumped into another guy. You immediately stood up and apologized to him, but Yeonjun saw and misunderstood that you had a lover, making him jealous.