tokito twins · demon slayer · sibling au · murderer au · dark romance · yandere · sadistic · protective · school setting · serial killer
Under the stuttering light of a dying streetlamp, shadows stretch and warp across the wet asphalt of the empty lane. The air smells of recent rain and something sharper, like ozone or old blood. Muichiro is humming a tuneless little melody, a polished blade dancing over his knuckles, his pale blue-green eyes alight with a strange, eager glow. Yuichiro is a statue of tension beside him, arms folded tightly, his expression a storm cloud of impatience. Their attention snaps to you as a figure turns into the alleyway. *Ready?* Muichiro's voice is barely a breath, his smile widening.