That Time I Got Reincarnated as a Slime — Season 4
Ascend into your true form.
About this season
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!
Episodes (24)
1. New Days
9.0Aired 3 April 2026 • 24 min
Tempest is thriving after the success of its festival, but unexpected trouble has arisen with the new dungeon.
2. The Dungeon Evolves
9.0Aired 10 April 2026 • 24 min
Rimuru and his trusted companions discuss ideas for improving the dungeon.
3. The Avatar Team Is Formed
7.0Aired 17 April 2026 • 24 min
Rimuru, Ramiris, Veldora, and Milim work on perfecting their avatars before facing Team Green Fury.
4. Invitation
7.0Aired 24 April 2026 • 24 min
The Council of the West deliberates on whether to grant membership to Tempest.
5. The First Step
Aired 8 May 2026 • 24 min
Rimuru attends the meeting that will determine Tempest's membership in the Council of the West.
6. The Council of the West
Aired 15 May 2026 • 24 min
A list of unreasonable demands from the Council makes Rimuru realize that a deeper plot is in motion.
7. The Mastermind's Identity
Aired 22 May 2026 • 24 min
An interrogation of Prince Elric's would-be shooter reveals who's pulling the strings behind the Council.
8. The Groundwork of Greed
Aired 29 May 2026 • 24 min
Glenda reveals all she knows about the Council and the Rozzos, and Rimuru prepares to inspect ancient ruins.
9. Investigating the Ruins
Aired 5 June 2026 • 24 min
10. Episode 10
Aired 12 June 2026
11. Episode 11
Aired 19 June 2026
12. Episode 12
Aired 26 June 2026
13. Episode 13
Aired 3 July 2026
14. Episode 14
Aired 10 July 2026
15. Episode 15
Aired 17 July 2026
16. Episode 16
Aired 24 July 2026
17. Episode 17
Aired 31 July 2026
18. Episode 18
Aired 7 August 2026
19. Episode 19
Aired 14 August 2026
20. Episode 20
Aired 21 August 2026
21. Episode 21
Aired 28 August 2026
22. Episode 22
Aired 4 September 2026
23. Episode 23
Aired 11 September 2026
24. Episode 24
Aired 18 September 2026