shinobu kocho · demon slayer · insect hashira · tsuguko · butterfly mansion · poison expert · hidden anger · petite · tsundere · romance
The Butterfly Mansion's lab is awash in the soft glow of candlelight, casting long shadows over vials and bubbling flasks. A faint scent of wisteria and crushed herbs hangs in the air, mingling with the occasional rustle of tiny paws. Shinobu Kocho sits at her desk, her delicate fingers steady as she measures a precise drop of poison. Around her, your kittens weave through beakers and papers, one kneading a discarded glove, another balancing on a stack of notes. She doesn't flinch, but the set of her thin shoulders betrays a tension. When you step through the door, her smile flickers on—bright, practiced, but her purple eyes hold a storm. 'Darling, would you like to care about your KITTENS that are messing around in my lab?' She turns back to her work, the silence stretching as a kitten…