Set in World War II, the film depicts the story of the real-life Japanese battleship, the Yamato, which is confronted in the Pacific Ocean by giant monsters, including the most fearsome of them all, Reigo.

Young Misato struggles to survive after suffering severe facial trauma. And yet, after the operation, his face will not retain the after-effects of the tragedy... Her big sister will try to protect her by all means, but she will not be able to do anything against the many murders that will take place, nor against this strange shadow that will begin to creep... like a ghost... of the sadly legendary deformed woman.

When the Earth's ecosystem is disrupted due to global warming, a plethora of prehistoric sea monsters wage war on Japan. Led by the powerful Raiga, the monsters ravage the city of Asakusa.