Three men are possessed by the spirits of ancient samurai determined to build their master's castle, even if they must use cardboard.
The samurai lord, Ondaiji, travels 400 years to fulfill his dream of raising a castle. He finds an understanding professor, dim town officials, a mysterious old lady, and happy-go-lucky tramps who suggest the best material for the castle is cardboard. Cardboard? What will he do with his shachihoko?—Anonymous