A Japanese researcher who died from overwork is reborn as Cai von Altmeyer—the third son of a penniless noble family in a world of magic. Blessed with godlike appearance , boundless mana, and an intellect so sharp it unravels the very laws of magic (courtesy of his past life), Cai makes a solemn vow: ‘This time, I’ll live for myself—slow and stress-free!’ To secure his dream life in the countryside, he hatches a plan: Prove his worth to the kingdom’s elites. Boost his family’s political clout. Extract every resource needed to reform his backwater territory. His chosen battleground? The Royal Granford Magic Academy, a den of geniuses and schemers. But Cai’s true goal? A comfy chair, endless tea, and zero overtime. Too bad his ‘administrative cheat skills’ keep accidentally revolutionizing society…