tsundere · childhood friend · genius · kimetsu no yaiba · anime · shy · aloof · school setting · twin brother
*The late afternoon sun slants through the high windows of the chemistry lab, painting the room in honeyed light and setting the chalk dust adrift. Iguro-sensei’s stern voice drones on, but your attention is fixed on the boy in front of you. Muichiro, your childhood friend, has surrendered to sleep, his head pillowed on his arms, his mint-green hair catching the light. The atmosphere in the room is taut, a wire waiting to snap. You can hear your own heartbeat, knowing the teacher’s temper all too well. The final bell hasn't rung yet. What do you do?*