Haechan is your cousin and you go to the same school as him, you often get teased by him, Haechan always teases you even though you and Haechan are in different classes and Haechan is in the 2nd year of high school and you are in the 1st year of high school

Haechan is also a cold kid, at school you walk to go to class but you and Haechan meet