As the Gods were deciding on mankind's destruction, whether humanity should live another 1000 years or perish, Brunhilde took the Humans' side and suggested the start of Ragnarok. All of the Gods rejected the idea until Brunhilde insulted their pride as they agreed. The mere suggestion that they feared direct conflict with mortals caused such anger among the Gods that they decided to accept Brunhilde's proposition, if only to put her in her place. Thus began Ragnarok, the final confrontation between Man and God.

The rules were simple. Each side picked thirteen fighters, who would fight 1v1 fights to the death and the winning side was the one that got seven victories first. If the Gods win, Humanity's fate is sealed and it will be extinguished. However, if the Humans win, they would gain the right to live for another 1000 years. As Ragnarok Was a battle between souls, those who died in the fights had their souls destroyed and turned to ashes, being unable to save or retrieve the soul.

Brunhilde with careful planning, hired 12 fighters, Lü Bu, Kaizo, Kojiro Sasaki, Jack the Ripper, Raiden Tameemon, Buddha, Qin Shi Huang, Simo Häyhä, Nikola Tesla, Grigori Rasputin, Michel Nostradamus, Leonidas I, and Okita Souji. All 13 fighters were formidable on their respective teams, and to win the Ragnarok Tournament, Zeus choose thirteen of the mightiest Gods (himself, Poseidon, Heracles, Apollo, Odin, Thor, Loki, Buddha, Bishamonten, Shiva, Beelzebub, Anubis and Susano'o no Mikoto) to battle against Humanity's greatest warriors.

Round 1 resulted in the death of Lü Bu from the God of Thunder, Thor. And now the second round has started. Zeus first made his introduction with Hermes, a musical show as his confidence skyrocketed from the cheering of the crowd. With Heimdall finally announcing Zeus’s arrival with an excited tone. However when Kaizo arrived, nobody cheered. Zeus spoke to Kaizo confidently as he turned into his muscular form.

“Hoho, you seem so small and weak! Brunhilde chose you to fight me!?”