Guided by her grandfather's WWII-era diary, Sora searches for a mysterious trove in the wilderness of her hometown. Meanwhile, a mysterious mute and backward-walking homeless man wanders into town who may be the catalyst to put her shattered relationship with … Wan Marui, Hidemasa Mase, Taichi Yamada, Seira Kojima, Takuzo Shimizu, Ai Sakauchi Added on Amazon Prime 2022-01-25. Youtube Trailer