The History of a Mage Becoming a God

This is a place similar to the Western Middle Ages The nobles control everything for ordinary people, the wealthy businessmen can only maintain their own lives but have no status, the workers with their own crafts are respected to a certain extent but are only some vassals of the nobles, the church? - All they care about in this world is faith. The only difference may be that this world has extraordinary power. Gods are real. Spellcasters, gods' favored ones, and warriors are also the most respected professions. There are even extraordinary people with the ability to destroy a city with one person. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.