The Demon Sword Master of Excalibur Academy

Leonis Death Magnus, the most powerful of the Dark Lords and an undead sorcerer, was trapped in magical stasis following a crucial battle one thousand years ago. Upon awakening, he was greeted by Riselia, a stunning young lady with silver locks. However, the even greater surprise was that he had been transformed into a ten-year-old boy! As he adjusts to this unfamiliar time period, Leonis must also battle grotesque monsters known as Voids – all while concealing his true abilities from his lovely new caretaker.