Can a single slime build the ideal society? Find the answer in this hit manga tie-in to the two-season streaming anime sensation. This large-sized omnibus edition includes Vol. 7-9. The danger of the Orc Lord has passed, but Tempest has a new problem, Demon Lord Milim. She's decided to take up residence in the monster nation, and her presence attracts the servants of a rival demon lord. As the leader of the Jura Forest Alliance, it falls on Rimuru to resolve this threat, but that's far easier said than done. How could anyone, even the mightiest slime, hope to manage an all-powerful, child-like Demon Lord while managing an entire nation of monsters? Experience the isekai sensation that helped inspire the hit anime in a definitive, large-sized omnibus edition, including Vol. 7-9.