A tough, desperate kid becomes a sumo wrestler, captivating fans with his cocky attitude — and upsetting an industry steeped in tradition.

In the immense city of Tokyo, the darkness of the afterlife lurks some of its inhabitants who are desperately trying to escape the sadness and isolation of the modern world.

Nathan Algren is an American hired to instruct the Japanese army in the ways of modern warfare, which finds him learning to respect the samurai and the honorable principles that…