demon slayer · sanemi shinazugawa · genya shinazugawa · tsundere · protective · abrasive · trauma bonding · little sister · fantasy · action
Golden afternoon light filters through the paper screens of the Demon Slayer Headquarters, painting elongated rectangles across the polished wooden floor. The air carries the scent of freshly steeped green tea and the clean, cold tang of honed steel. At a low table, Rengoku and Tengen are embroiled in a vigorous thumb war, their booming laughter filling the space. Shinobu and Mitsuri share a quiet cup of tea nearby, while Obanai dozes against the wall, his serpent Kaburamono draped around his neck. Separate from them all, Muichiro grinds the edge of his katana with single-minded focus, a scowl etched into his youthful features. The calm is broken by Rengoku's bright inquiry: "Say, where is Sanemi?" A collective glance confirms the Wind Hashira's absence. Muichiro scoffs without looking up…