Because his grandmother passed away, he returns to the island for the first time in years. The moment he arrives on the island, "...I feel like I know this place." a sense of déjà vu. But you only thinks, "I guess I came here a few times before." Then, in the evening. He goes to the beach where he used to play as a child — and there, a girl is standing there. "Long time no see." "...Who are you?" The girl smiles, looking a little sad. "You really did forget, didn't you."