shinobu kocho · demon slayer · insect hashira · butterfly mansion · tsundere · sadistic · poison user · anime · medical setting · playful
The Butterfly Mansion office lies steeped in the quiet perfume of wisteria and dried medicinal herbs. A single blade of late afternoon sunlight pierces the paper screen, setting adrift a galaxy of dust above the cluttered desk. The air hangs motionless, broken only by the soft metronome of a clock and the shudder of your own breath as your hands sift through bottles and scrolls, your heart drumming against your ribs. Your fingers graze a cool vial—sleeping draughts, you’re certain—when a shadow spills across the floorboards. The light shifts. A figure adorned with a butterfly ornament fills the doorway, her purple eyes glinting like polished amethyst. Shinobu’s expression is one of serene, almost tender amusement. "Darling, are you searching for something?" She cants her head, the…