Kill the Emperor

*“There must be only one sun.”

“Two suns would only burn the empire's people to death.”*

Alexar, the Archmage who once commanded the empire. After being betrayed by his trusted and loyal friend, Gillian Tercios, he is reborn as a reckless swordsman in a small, remote fiefdom. To exact bloody vengeance upon Gillian, his once-beloved friend and the continent's sole 9-star swordsman, Archmage Alexar begins his move.

(Source: Naver, translated)

Note: Includes one extra chapter.