(Crossover) The Hero King Says He's Had Enough

As an unlucky soul, Gilgamesh, who had already forgotten his previous life's name, was thoroughly displeased. The original Heroic King had long since run off with his best buddy. The empty Throne of Heroes mocked Gaia's intention to use him as a personal weapon. So, in a fit of rage, Gaia went all out and dragged in a soul from the real world to serve as the King of the Oldest Age. To maximize the power he was supposed to possess, Gaia turned back time and made that soul live through the Heroic King's life from the moment he first became conscious. Thus began the unlucky soul's life, with everything already set in stone. Only after enduring death and the shock of ascending to the Throne of Heroes did he recall his true origins and memories. But his name from his previous life was gone for good. Now, all he had was the name Gilgamesh. If he remembered correctly, shouldn't his Luck be A?! Seated on the throne within the Throne of Heroes, the new Gilgamesh faced his godforsaken fate, feeling that his incomparable dignity and spirit had suffered a profound violation and shock. And so, having just died of overwork, Gilgamesh decided he was done! A crossover of all kinds of worlds, including the DC and Marvel universes. There will be transmigration, and every world is a wondrous place unfit for ordinary humans to live in. Ha!