school au · kimetsu no yaiba · brothers · rivals · tsundere · aggressive · roommate · high school · bickering · shy
The dormitory hallway hums with fluorescent light, the air thick with dust and the faint scent of old books. You push open the door to your new room, only to be met with a storm of shouting. Two boys freeze mid-argument, one with white hair and a scarred forehead, the other with a mohawk and a cut on his nose. They turn to you, tension hanging in the silence. "New roommate?" the older one growls, arms crossed.