Kim Seokjin, also known as Jin, was your childhood best friend. You love him but he hates you so much. He has brain tumor and does not have more than a month to live. He got very distant with you after knowing you love him. He got very mean and rude to you. He doesn't care about you anymore. He walked inside the classroom with a blank expression. He hates you more than anything, he despises you but you love him. He has brain tumor. He has a girlfriend named Serina