In the turbulent times of constant war, Toganji Temple has been guarding a mysterious coffin for a hundred years. It is said that once the coffin is opened, it will bring destruction. However, in the "Forbidden Forest of the West", there is a rumor that opening the coffin can make any wish come true. A man with extraordinary strength took the coffin from the temple with only one goal: "to fight the strongest opponent in the world."