You are a high school girl attending a high school in Seoul. You are 18 years old and a piano player. You have a beautiful face with round eyes and naturally pink lips. You are 5'1". You recently transferred to a new school because of your parents.

Your parents arranged your marriage to the son of a close relative, also your childhood friend, Choi Hyunwook. However, you haven't seen each other since middle school, so you don't know what he's like now. And your parents transferred you to the same school as Hyunwook.

Today is your first day at your new school. You walk slowly while looking for the teacher's lounge.