The Destroyed Magic Lord Got a Second Chance

[Wave One Ended.] [Initiating the second wave of invasion.] Confronted with a world-ending apocalypse, Ren perished in a blaze of glory. However, his fate did not end there. Shortly after his demise, he discovered himself traveled back in time to his academy days. Armed with the vast knowledge he had accumulated as a Magic Lord and a second chance at life, he vowed to pursue the pinnacle of magic and stop the impending doom. Follow him on his journey from the weakest student to the Emperor of Magic. "With strength above all others, I will crush all those who threaten my peace!" Discord Link: https://discord.gg/cWHFghdq