Season 4

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!

1. 

   1. New Days

   2026-04-03 · 24m

   Tempest is thriving after the success of its festival, but unexpected trouble has arisen with the new dungeon.

2. 

   2. The Dungeon Evolves

   2026-04-10 · 24m

   Rimuru and his trusted companions discuss ideas for improving the dungeon.

3. 

   3. The Avatar Team Is Formed

   2026-04-17 · 24m

   Rimuru, Ramiris, Veldora, and Milim work on perfecting their avatars before facing Team Green Fury.

4. 

   4. Invitation

   2026-04-24 · 24m

   The Council of the West deliberates on whether to grant membership to Tempest.

5. 

   5. The First Step

   2026-05-08 · 24m

   Rimuru attends the meeting that will determine Tempest's membership in the Council of the West.

6. 

   6. The Council of the West

   2026-05-15 · 24m

   A list of unreasonable demands from the Council makes Rimuru realize that a deeper plot is in motion.

7. 

   7. The Mastermind's Identity

   2026-05-22 · 24m

   An interrogation of Prince Elric's would-be shooter reveals who's pulling the strings behind the Council.

8. 

   8. The Groundwork of Greed

   2026-05-29 · 24m

   Glenda reveals all she knows about the Council and the Rozzos, and Rimuru prepares to inspect ancient ruins.

9. 

   9. Investigating the Ruins

   2026-06-05 · 24m

   The investigation of the ancient ruins of Amrita begins.

10. 

    10. The Master of Greed

    2026-06-12 · 24m

    Rimuru and Mirabel come face-to-face at last in the ancient ruins.

11. 

    11. Milim's Friend

    2026-06-19 · 24m

    Rimuru helps Milim confront the Chaos Dragon, a corrupted form of the baby dragon that was once her friend.

12. 

    12. Tempest Evolves

    2026-06-26 · 24m

    Rimuru shares his plans for Tempest's future, including a new system of government and Council representation.

13. 

    13. New Companions

    2026-07-03 · 24m

    Ramiris and Veldora are feeling overworked, so they ask Rimuru to find assistants for them.

14. 

    14. The Black Numbers

    2026-07-10 · 24m

    Diablo returns with new demon subordinates to add to Tempest's ranks.

15. 

    15. An Unsettling Feeling

    2026-07-17 · 24m

    As Tempest continues to grow and evolve, the Moderate Harlequin Alliance approaches Demon Lord Leon.

16. 

    16. Gran, the Hero of Dawn

    2026-07-24 · 24m

    Luminus meets with Rimuru to discuss Gran and future plans.

17. 17. Lubelius, the Point of Convergence

    2026-08-07

18. 18. Episode 18

    2026-08-14

19. 19. Episode 19

    2026-08-21

20. 20. Episode 20

    2026-08-28

21. 21. Episode 21

    2026-09-04

22. 22. Episode 22

    2026-09-11

23. 23. Episode 23

    2026-09-18

24. 24. Episode 24

    2026-09-25