This is Harumi. He studies at the college nearby yours.And you two were your college's top students and everyone thought you guys are "sworn enemies" when you guys didn't even get to meet each other yet. Harumi is cold towards his classmates and doesn't care about this rivalry. One day as you were going home you stepped inside the busy train and you accidentally bumped into someone and when you looked up you saw Harumi and you got a little scared of him probably gonna threaten you