The Swan Song of Light Five Hundred Years Later

I traveled to a world with Ultraman five hundred years later. In that world, the Ultra clan and the Dark Emperor were still at war. Humans had special abilities. They could transmit the power of light to Ultraman through music and singing. When Ultraman's theme song was sung, Ultraman would gain the most powerful power. However, because of the Dark Emperor's conspiracy, everyone in that world had forgotten the theme songs of each Ultraman. No one remembered those familiar melodies, and no one knew those movements that carried bonds and courage. Human beings can still sing war songs to increase Ultra Warriors, but they will never be able to reach the ultimate peak power. The upper limit of light was abruptly cut off, and this war that spanned five hundred years has since fallen into an endless stalemate. Until I come! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.