One year ago, Yūta lost his father in a car crash. Now in the 6th grade, Yūta goes to catch beetles in a dam near a mountain, a place he often went with his father. There, Yūta meets a strange old man, and while walking in heavy rainfall, slips and blacks out. When Yūta awakes, he sees a child, Saeko, who shows him a village from the past. A precious summer vacation for Yūta begins.
武井証
as Yūta Otabe (voice)
Ayumi Kimura
as Saeko Okuyama (voice)
石田太郎
as Hotaru Jii (voice)
大塚周夫
as Aotengu (voice)
谷育子
as Obā-chan (voice)
Yuuki Yagi
as Yoshizawa (voice)
中井和哉
as Kenzō – Adult (voice)
能登麻美子
as Saeko – Adult (voice)
田中正彦
as Saeko's Father (voice)
本城雄太郎
as Shintarō (voice)