Ginka

Five years ago, Ryusei's childhood friend Ginka vanished on the night of the summer festival. The islanders called it being spirited away. Now in high school, Ryusei returns to the island over summer break — and finds out Ginka was never seen again after that night. Just as he prepares to leave, he meets a girl who looks exactly like her. She does not know her own name. She only knows she loves Ryusei. Where has she been? Why has she not aged? Ryusei is not leaving yet.