Season 4
24 episodes · 2026
The fourth season of Tensei Shitara Slime Datta Ken. Demon Lord Rimuru's dream of creating an alliance between humans and monsters takes a step closer to being realized. As Tempest continues to prosper, Granville Rozzo and his granddaughter, Maribel Rozzo, clash with Demon Lord Rimuru over their plan to protect mankind by ruling over them. Meanwhile, in El Dorado, Demon Lord Leon works toward goals of his own. The awakening of a new Hero draws near! (Source: Crunchyroll News)
E01New Days
★9Tempest is thriving after the success of its festival, but unexpected trouble has arisen with the new dungeon.
E02The Dungeon Evolves
★9Rimuru and his trusted companions discuss ideas for improving the dungeon.
E03The Avatar Team Is Formed
★7Rimuru, Ramiris, Veldora, and Milim work on perfecting their avatars before facing Team Green Fury.
E04Invitation
★7The Council of the West deliberates on whether to grant membership to Tempest.
E05The First Step
Rimuru attends the meeting that will determine Tempest's membership in the Council of the West.
E06The Council of the West
A list of unreasonable demands from the Council makes Rimuru realize that a deeper plot is in motion.
E07The Mastermind's Identity
An interrogation of Prince Elric's would-be shooter reveals who's pulling the strings behind the Council.
E08The Groundwork of Greed
Demon Lord Rimuru's dream of creating an alliance of humans and monsters grows closer to being realized.
E09Episode 9
E10Episode 10
E11Episode 11
E12Episode 12
E13Episode 13
E14Episode 14
E15Episode 15
E16Episode 16
E17Episode 17
E18Episode 18
E19Episode 19
E20Episode 20
E21Episode 21
E22Episode 22
E23Episode 23
E24Episode 24