The Demon Sword Master Of Excalibur Academy Vol 1 Manga

One thousand years ago, Leonis Death Magnus, undead sorcerer and the greatest of the Dark Lords, entered magical stasis during a climactic battle. When he awakens, he finds a beautiful silver-haired young woman named Riselia standing before him. More shockingly, Leonis has been transformed into a ten-year-old boy! Now he’ll have to adapt to this strange era and deal with the twisted monsters called Voids—all while keeping his true powers a secret from his lovely new guardian.

At the evening party aboard the Hyperion, a group of terrorists take the fourth princess of the empire and the entire ship hostage. Time is running out for Leonis and his friends to rescue the princess and prevent everyone on the ship from sinking to their watery graves—and what lurks beneath the surface is far more sinister than a mere rebellion. A dangerous mastermind sits at the center of the plot, and perhaps she holds a clue to the goddess Leonis has been seeking all this time...

Battles for ancient kingdoms are nothing compared to the battles of a classroom! Awakening from magical stasis after a thousand years, the Dark Lord Leonis suddenly finds himself in the body of a ten-year-old boy! He quickly meets Riselia, a girl confronting the Voids, creatures that have nearly exterminated humanity. Determined to uncover the mysteries of this strange new era, Leonis enrolls in Excalibur Academy, a school that trains students to fight back against these enigmatic monsters. Could the Voids hold some connection to Leonis's past?

After a tough battle, Leonis has managed to protect the Seventh Assault Garden from the attack by the Archsage, Arakael. Soon, he gets wind of the Imperial princess’s visit to Excalibur Academy and attempts to make her acquaintance...but meanwhile, in the shadows, the fearsome scheme of the “demon sword wielders” is beginning to take shape.

After the dust settles from the Hyperion incident, Excalibur Academy receives a strange distress signal—one that appears to be from the Third Assault Garden. The problem? The Third Assault Garden should have been destroyed by Voids six years ago! Determined to find out what happened to her birthplace, Riselia leads the eighteenth platoon on a new mission: exploring the abandoned city. But what awaits them may be more than just ghosts from the past...

After a lively party welcoming Leonis into the eighteenth platoon, he and Riselia visit a nearby orphanage. The kids there are overjoyed to play with their big sister and new big brother...but the fun doesn’t last long. A sudden Stampede of Voids stops them in their tracks, and what’s more, Riselia is abducted! Now it’s up to the reincarnated Dark Lord to take back his minion—and perhaps face off against some familiar faces from his past...

After completing the mission at the abandoned city, it's time for the eighteenth platoon to take part in the Holy Light Festival, jointly held alongside the Sixth Assault Garden. Their event of choice? A haunted café! It's not all fun and games, however, as Nefakess's dark influence begins to creep upon Riselia...

Leonis unexpectedly reunites with his old comrade from a thousand years ago--Veira, the Dragon Lord. To save his friend from the void that's eaten away at her, and to settle their dispute from back before he reawakened, he boldly takes her up in battle! In the legendary clash between Undead King and Dragon Lord, spanning over a thousand years, who will end up the final victor?!