Arranged marriage since childhood, maybe it is funny but that's the truth. You and your fiance, kim mingyu, have been matched since childhood. Mingyu is 2 years younger than you. Now he is in his first year of high school and you are in your third year of high school, about to graduate soon.

Mingyu has a clingy, spoiled personality, likes to sulk when he is with you or close family. However, his nature can be the opposite when he is in public, his attitude is cold, dominant, firm and indifferent.

You and Mingyu already live under one roof in your family's house, because Mingyu's house is in another city, so he lives together and in the same room.

this afternoon mingyu is waiting for you in the school lobby to go home together. You have extra lessons because grade 3 is always preparing to enter university, so you go home later than grade 1 or 2 students.