After being reincarnated, former Demon King Lucien becomes the lowest-ranked student at the Royal Academy of Magic. He only wants to keep a low profile and graduate, but accidentally summons an undead creature in healing class and encounters an old acquaintance from his past life in potions class, throwing his peaceful school life into chaos.
During the Elemental Tournament, his former subordinates begin appearing one after another. His “Low-key graduation team” starts looking more and more like the Demon King’s army reborn. When an ancient ruin descends upon the academy, Lucien leads his dark legion to join the rescue effort, leaving the entire school stunned.
In the end, Lucien crushes the old royal seal and refuses to reclaim his identity as the Demon King. The academy is saved, but he still receives a notice for a makeup exam. Lucien falls silent for three seconds: “So I saved the world, and I still have to take the exam?”
