Showdown, I Am His Majesty the Emperor

The protagonist weapons engineer woke up and was reincarnated into a glorious prince in the sword and magic continent, and also awakened the "Eternal God Emperor System". The starting conditions are "Conquer the fateful protagonist, become the emperor, and at the same time abolish the aristocratic system and establish a one-spoken palace." More than twenty years have passed in a hurry, from an infant to a young man. His Highness the Prince developed technology and magic weapons, defeated the two royal brothers, conquered the royal sister, cultivated a new church saint, and conquered the fateful protagonist. At the enthronement ceremony, the fateful protagonist was shocked when faced with the conquest. "It's a showdown, I am your emperor." This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.