Honkai Impact 3Rd: Wait, Kiana Is an Ultraman?!

[The protagonist is not a transmigrator] + [A touch of the uncanny] + [Does this Honkai Impact 3rd world make any sense?] + [Too many elements] + [Ultraman spirit] + [There may be some OOC] + [Cuddling] This is a parallel world of Honkai Impact 3rd that seems perfectly normal. Everything that has happened from the First Honkai Eruption up to now has been completely normal! Although no one knows why K423 disappeared, that hasn't stopped the invaders from attacking this parallel world with overwhelming force! But just as the ferocious invaders are about to begin their invasion... A glowing giant appears! It's here, the Ultraman of the Honkai world! "Wait... What do you mean this world has an Ultraman?" "Why is the long-missing K423 an Ultraman, for crying out loud?!" "That's not how Galla invasions are supposed to go! You should fight us with all your might, and in the end either drive us back through sheer determination while suffering heavy losses yourselves, or be defeated and forced to retreat under our assault..." "But why does this timeline have an Ultraman?! And why is this Ultraman K Kiana?!" "I refuse to accept this!" "Gah! I can't accept this!" Why have invaders from outside this world appeared out of nowhere in a parallel world of Honkai Impact 3rd? Why did K423 disappear after the rescue operation? Why has the long-missing K423 returned in the form of an Ultraman? When all is said and done, is this a distortion of human nature or a collapse of morality? Want to know what happens? Read on and find out!