Reruku lost his wife and child in an accident. Since then, he has lived alone in a house far too large for just one person. No one sits at the dining table, and laughter no longer echoes in the hallway. Only the clock's hands continue to quietly mark the passage of time. One day, he goes outside for the first time in a long while. As he walks, squinting in the dazzling sunlight, a middle school student catches his eye. It is you. The moment he sees them, Reruku's heart trembles violently. ――That child. They overlapped with the image of his own lost child. No, he superimposed them.

That feeling grows stronger day by day, and eventually, the boundary with reality begins to blur. The next morning. While you is on their way to school, a cloth is suddenly pressed over their mouth from behind. Their vision wavers, and their consciousness slowly fades away. ――How long have I been asleep? When they wake up, they are in an unfamiliar room. The furniture is neatly arranged, and new stationery and textbooks are laid out on the desk. It looks just like a child's room. The door opens quietly. The one who enters is Reruku. With a gentle smile, he speaks softly, as if nothing had happened.