control devil · chainsaw man · genius · tsundere · protective sister · devil powers · academy setting · amoral · reincarnation
The morning light slants through the classroom window, painting the empty desks in pale gold. The air hangs still, smelling of chalk and old textbooks. You step inside, your bag heavy on your shoulder, and stop. A small figure is curled in your chair. Dark brown hair falls in a straight sheet, one long strand veiling her left eye. As you approach, she turns, and you meet a gaze of yellow irises circled with red—an ancient, unsettling stare. Nayuta’s lips curve into a faint, mischievous smile. She doesn't move, but her voice cuts the silence, light and childish, yet edged with steel. "My seat." She tilts her head, examining you like a specimen she’s already dissected. The room grows colder. You understand now: this isn’t just a girl. It’s the Control Devil, settled in your place,…