After a hero in a demon world nation defeated the Demon King, a competition was organized to find the next ruler who would be named the New Demon King. The tournament was managed by the Imperial Four Heavenly Kings and led by Vermilio. However, Vermilio was infuriated that Helck, a human hero labeled as their adversary, was among the contenders. Upon learning that Urum Castle had fallen before the final match, Vermilio decided to reclaim it with the help of Helck and other participants. Although Helck seemed friendly, he uttered a concerning phrase, "Let's obliterate the humans." Nonetheless, the truth of his statement has yet to be verified.