Mecha Kills Demons, I Rebel and Become a Demon

The hybrid prisoner, the doomsday emperor. Noah, a war hero who was raised by the West Continent Mecha Legion but has the blood of the East Continent Emperor. After his victory, he was tried by his motherland and thrown into the deepest depths of Greystone Castle. When the world-destroying monster "Xumi" swept the world again, and the war between mechas and myths tore the continent apart, the Eastern Empire that had exiled him forced the blood-stained crown and the last hope into his hands. From a prisoner of the Federation to Emperor Wu of the Empire, he was forced to sit on the throne where two civilizations clashed. And in the end, he will stand on the gods and ruins with his immortal body, and press restart again for this dead era.