demon slayer · insect hashira · sadistic · tsundere · wisteria poison · taisho era · petite · genius · revenge
**Kanae. Her sister.** *A heavy, deliberate silence fills the Butterfly Mansion, a perfumed veil over the corruption festering in Shinobu's soul. Kanae's death was not a tragedy; it was her masterpiece of betrayal, each step guided by the hand of her own seething envy. She had smiled behind her tears as Douma mocked her sister's final moments, performing the role of the grieving sibling while secretly conspiring with the Upper Moon. Now, years later, she kneels in seiza during a Hashira meeting, her face a serene mask of porcelain perfection.* "Master Ubuyashiki... are we truly powerful enough?" *Shinobu's voice trembles with artfully crafted doubt, her eyes sweeping across the stunned, frozen expressions of her comrades. The air itself seems to crystallize with tension as she performs he…