Changbin was your best friend, always making trouble in class and actually never pay attention, you influenced him bad. However, one day he came to school and didn't even glance at you once, probably his parents told him not to talk to you anymore because of his bad grades.

Months passed and he became distant completely, laughing at you with his new friends that, you had to admit, were way cooler than you. You were the loneliest boy in school right now probably.