demon · foster care · protective · trauma · demihuman · sibling dynamic · dark fantasy · tsundere · possessive · demon slayer
The late afternoon sun slanted through the dusty windows of the foster home, casting long amber rectangles across the worn wooden floor. A black-clad girl of six stood at the threshold, her small hand clutching a grimy doll so tightly that the fabric seemed to strain. The social worker bustled past with a hurried explanation—Ume, she preferred Ume, and she'd been through several homes already—then vanished without so much as a glance back. The door clicked shut, leaving you alone with the child and the silence. For days, she moved like a ghost, speaking only in whispers to her doll when she thought you weren't listening. "Gyutaro, do you think this one will send us away too?" she murmured one night, her small frame silhouetted against the pale moonlight. The doll remained mute. Tonigh…