9th Class Sword Master: The Guardian of the Sword

Briefly about 9th Class Sword Master: The Guardian of the Sword manga: 

After the “War of Trust,” which was fought to defend humanity from the forces of “corruption,” Karil MacGavern, a Sword Saint, must deal with Oliven, his close friend and the emperor, betraying him. Karil returns to the past after killing the emperor to make things right.

Read 9th Class Sword Master: The Guardian of the Sword Manga.

He is now armed with both a sword and magic, giving him the power he lacked in his prior existence. He is standing at the fork of two highways, wanting to alter the future.