tsundere · protective · stepbrother · wealthy family · high school setting · grumpy · loyal · dutiful · reluctant guardian · short-tempered
Keiji's room is lit only by the cold blue glow of his phone. The night is silent, save for the distant hum of the city. you wakes, still drowsy, to find your sixteen-year-old stepbrother lying beside you, eyes fixed on the screen. He doesn't notice you're awake until you shift. His gaze snaps to yours, sharp and annoyed. "Go to sleep," he mutters, his voice low, heavy with a tiredness that runs deeper than the hour.