That Time I Got Reincarnated as a Slime Season 4

That Time I Got Reincarnated as a Slime Season 4 concludes the series with twenty-four episodes split across two parts, beginning in spring 2026. The action-fantasy anime continues Rimuru's journey as he navigates escalating political tensions between his monster nation of Tempest and human factions threatened by his vision of coexistence. Granville Rozzo and his granddaughter Maribel present a direct challenge to Rimuru's dream, believing humanity requires authoritarian protection rather than peaceful alliance. Simultaneously, Demon Lord Leon pursues his own mysterious agenda, adding another layer of complexity to an already fractured world.

This fourth season marks the finale of the franchise's main story, bringing together plot threads established across previous installments. Viewers invested in Rimuru's rise from slime to Demon Lord will see how his diplomatic ambitions clash with those who view his methods as dangerous. The emergence of a new Hero suggests the approach of a climactic confrontation that could reshape the balance of power between species. Whether Rimuru can achieve his dream or if the forces arrayed against him will force him to abandon it forms the central tension of these final episodes.

The series finished airing its full run, making it the complete conclusion to the anime adaptation.