New Days
Tempest is thriving after the success of its festival, but unexpected trouble has arisen with the new dungeon.
Episode 1•24m
The Dungeon Evolves
Rimuru and his trusted companions discuss ideas for improving the dungeon.
Episode 2•24m
The Avatar Team Is Formed
Rimuru, Ramiris, Veldora, and Milim work on perfecting their avatars before facing Team Green Fury.
Episode 3•24m
Invitation
The Council of the West deliberates on whether to grant membership to Tempest.
Episode 4•23m
The First Step
Rimuru attends the meeting that will determine Tempest's membership in the Council of the West.
Episode 5•24m
The Council of the West
A list of unreasonable demands from the Council makes Rimuru realize that a deeper plot is in motion.
Episode 6•24m
The Mastermind's Identity
An interrogation of Prince Elric's would-be shooter reveals who's pulling the strings behind the Council.
Episode 7•24m
The Groundwork of Greed
Glenda reveals all she knows about the Council and the Rozzos, and Rimuru prepares to inspect ancient ruins.
Episode 8•24m
Investigating the Ruins
Episode 9•24m
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)
