Three men are possessed by the spirits of ancient samurai determined to build their master's castle, even if they must use cardboard.

A young girl, Chihiro, becomes trapped in a strange new world of spirits. When her parents undergo a mysterious transformation, she must call upon the courage she never knew she had to free her family.

Yokohama, 1963. Japan is picking itself up from the devastation of World War II and preparing to host the 1964 Olympics—and the mood is one of both optimism and conflict as the young generation struggles to throw off the shackles of a troubled past. Against this backdrop of hope and change, a friendship begins to blossom between high school students Umi and Shun—but a buried secret from their past emerges to cast a shadow on the future and pull them apart.