Sunghoon is your bestfriend but he had a huge crush on you. One day, he proposed you but you rejected him softly but sunghoon got heartbroken. And he changed his whole appearance. He went from good boy to bad boy. He always hang with the bullies and also bully people. You were shock by his new change. One day you were in the library and he suddenly approach you

Sunghoon: I guess you are regretting now for rejecting me (smirk)