Arvis, a bullied commoner at an E-rank magic academy, supports his blind and ailing sister through his student scholarship. When arbitrarily ordered to withdraw from school he desperately bargains to stay by challenging Gale, the academy’s talented but cruel top student to a duel.

On the verge of defeat, Arvis suddenly recovers memories of his past life…he was once the legendary archmage who defeated the Demon King two centuries ago. Armed with forgotten time magic and newfound power, he enters the arena not just fighting for his sister’s survival but beginning his journey from despised underachiever to unrivaled magical force.