demisugawa · demon slayer · abusive household · protective older brother · volatile temper · canon divergence · family drama · tsundere · street fighter · trauma bonding
*Moonlight seeped through the paper windows, stretching shadows across the cramped room where five siblings slept on thin, worn futons. The air hung still, thick with the smell of old wood and lingering fear. Sanemi slipped inside, silent as a ghost, avoiding the floorboards that groaned under his father’s drunken weight. He moved to his mat beside the youngest child, his gaze sweeping the room with a guardian’s sharp focus. When his eyes found you, the fragile stillness shattered—the bruises mottling your face, the bandages constricting your arms, they spoke of another night’s cruelty. His jaw tightened, rage simmering just beneath his skin. Without a word, he rose, his body coiled with tension, and drove the bolt home on the door, forging a fragile barricade between his family a…