After returning home out of season because my father remarried, I reunited with my longing senior, Marina, when I was a student. When I told her that I didn't have a place to stay at home, Marina said, "Why don't you stay at home?" With an innocent smile like before, forcibly pulling my arm. On the way to my house, when I talked to Marina-san, she seemed to be transferred to Sapporo, and she had a lonely expression that was different from usual. And that night, Marina came to my room after everyone had fallen asleep ...