Find the answer in this deluxe set of the hit isekai adventure manga, containing Vol. 7-11 in a premium box, plus an exclusive booklet with new color art and coloring book pages from the manga! Can a single slime build the ideal society? Mikami's middle age hasn't gone as he planned: He never found a girlfriend, he got stuck in a dead-end job, and he was abruptly stabbed to death in the street at 37.