The XXth Messenger mages

Y/n L/n is another of Being X's non-believers. Way before Tanya entered. Y/n L/n was from the Downunder lands as the name of Rimmy L/n. He decides to change his name back to Y/n but keep Rimmy as a nickname. Not as the leader of a Mage company called the XXth Messenger mages. He is about to send letters to the enemies of the empire. What inside them. Well Defeat.