That Time I Got Reincarnated as a Slime Season 4

Rimuru governs Tempest and shifts focus from festivals and trade to long term security. Talks with human nations move from courtesy to real terms while the church and noble factions test the new balance. Peace efforts with Lubelius and the Western council run in parallel with quiet preparation for a larger conflict. Reports from the east point to an imperial buildup and weapons that ignore ordinary magic. Tempest maps supply lines, trains commanders, and places trusted allies on likely fronts. Diplomacy brings formal visits and a summit that must hold even as spies try to provoke incidents. When raids and probes begin, the response is organized. Squads anchor towns, elites counter strike, and the demon lords aligned with Rimuru keep pressure on planners rather than foot soldiers. The struggle is not a single duel. It is logistics, timing, and the will to protect a country that was built from nothing. Each decision closes one risk and opens another as the war that was once a rumor becomes the next reality.