Corporate worker Mikami Satoru is stabbed by a random killer, and is reborn to an alternate world. But he turns out to be reborn a slime! Thrown into this new world with the name Rimuru, he begins his quest to create a world that’s welcoming to all races.
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see all options Availability data: JustWatch
- Seasons
- 4
- Episodes aired
- 93
- Latest aired
- S04E21
- Total runtime
- 1d 13h
Timeline when each season aired
- Season 1 October 2018 – March 2019 24 episodes
- the show was away for 1 year and 10 months
- Season 2 January 2021 – September 2021 24 episodes
- the show was away for 2 years and 6 months
- Season 3 April 2024 – September 2024 24 episodes
- the show was away for 1 year and 6 months
- Season 4 April 2026 – September 2026 24 episodes
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S03E01 Demons and Strategies
April 5 · 24min find the promo
Show synopsis
Rimuru has returned to Jura after having attended Walpurgis. Diablo informs Rimuru of his mission to deal with the Kingdom of Falmuth. Having presented the kingdom with three options at a resolution, the clock on the week for their answer ticks down.
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S03E02 The Saint's Intentions
April 12 · 24min find the promo
Show synopsis
Yuuki is saddened by the death of Clayman, and Luminus is saddened by the death of Roy. Steeped in sadness, and having lost their friends, they seek their next move against Rimuru, who has grown in power and become a true Demon Lord.
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S03E03 Peaceful Days
April 19 · 24min find the promo
Show synopsis
Expecting visitors from all races to come calling after learning that Rimuru now controls the entire Great Forest of Jura, Rimuru decides to hold a festival to introduce himself and Tempest to the world, with the goal of attracting new citizens.
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S03E04 Everyone Has a Part to Play
April 26 · 24min find the promo
Show synopsis
Responding to Rimuru's concerns about monsters in the forest harming humans, Vesta and Kaijin reveal a new invention they hope will keep the road to Tempest safe. Also, Rimuru assigns a new task to Geld.
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S03E05 Meeting of Both Sides
May 3 · 24min find the promo
Show synopsis
A war council led by Hinata is held in the Holy Empire of Lubelius. Moments after Hinata declares her intent to meet Rimuru and talk to him, she receives a hostile message from Rimuru.
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S03E06 Those Approaching
May 10 · 24min find the promo
Show synopsis
The spread of false information causes the Temple Knights to assemble, endangering Diablo's plan to conquer Falmuth. Meanwhile, Rimuru learns that Hinata is on her way to Tempest.
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S03E07 Saint and Demon Clash
May 17 · 24min find the promo
Show synopsis
As Hinata makes her way to Tempest, the ramen and well-built roads she sees along the way prove to her that Rimuru genuinely wants monsters and humans to coexist. But against her wishes, one of her men is also on his way to Tempest...
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S03E08 Misunderstanding
May 24 · 24min find the promo
Show synopsis
The Crusaders have reached Tempest, and the battle is on. Hinata lays everything she learned from her mentor, Shizu, on the line in a life-or-death showdown against Rimuru.
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S03E09 The Scheming of the Seven Days
May 31 · 24min find the promo
Show synopsis
Diablo descends before the enemy, King Edward of Falmuth. Also present are Saare and Glenda, two of the three Battlesages who are regarded as the most brilliant among the Master Rooks.
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S03E10 God and Demon Lord
June 7 · 24min find the promo
Show synopsis
Just after the end of Hinata and Rimuru's duel, Hinata's sword moves on its own and targets Rimuru. Hinata jumps in its way to protect him and is gravely injured. Then the masterminds behind the whole conflict show up...
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S03E11 Reconciliation and Agreement
June 14 · 24min find the promo
Show synopsis
The Seven Days Clergy have been purged, and the battle is over. Rimuru and Hinata hold a meeting to discuss future relations between their two nations, and the masterminds behind the whole conflict, the Eastern merchants, are revealed.
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S03E12 Festival Preparations
June 21 · 24min find the promo
Show synopsis
Everyone in Tempest is busy preparing for the festival to celebrate the country's opening. Rimuru visits Mjöllmile to share ideas on forms of entertainment that will keep people coming back for more.
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S03E13 Invitation for All Nations
June 28 · 24min find the promo
Show synopsis
Demon Lord Ramiris tries to argue her way into moving to Tempest, where there's great food, hot springs, and ample entertainment. Rimuru happens to walk into the argument and comes up with a way to make use of Ramiris's skills.
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S03E14 Labyrinth and Storm Dragon
July 5 · 24min find the promo
Show synopsis
Rimuru is building a dungeon in preparation for the upcoming festival. It will feature treasure chests containing weapons made by Kurobe, and Veldora will inhabit the deepest floor as the final boss. Then Milim suddenly shows up with a suggestion...
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S03E15 Audience
July 19 · 24min find the promo
Show synopsis
Numerous representatives from across the Great Forest of Jura have assembled in Tempest to congratulate Rimuru on his appointment to Demon Lord. Shuna requests holding a three-day audience to meet with them.
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S03E16 Benimaru's Ordeal
July 26 · 24min find the promo
Show synopsis
On the last day of the audience, Rimuru meets Momiji, the representative of the Tengu clan. Their meeting comes after Rimuru had sent Benimaru to the Tengu village to request their permission to build a tunnel through the Kusha Mountains.
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S03E17 The Lightspeed Hero
August 2 · 24min find the promo
Show synopsis
After learning about an elf slave trade, Rimuru had Soei investigate, but it turns out the slave traders have already been shut down by Masayuki, the Lightspeed Hero. Word is now spreading that the Hero is headed to Tempest to slay a Demon Lord...
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S03E18 A Throng of Visitors
August 16 · 24min find the promo
Show synopsis
After meeting with the kings of various nations, Rimuru heads to Engrassia to invite his former students to the festival. The kids are thrilled to go back with him to Tempest, but then the hero Masayuki arrives as well...
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S03E19 Festival Eve
August 23 · 24min find the promo
Show synopsis
The night before the Opening Festival, Rimuru throws a lavish banquet for all the nobles and royalty visiting Tempest. When the party is in full swing, Empress Elmesia of the Sorcerous Dynasty of Thalion arrives, throwing everyone into chaos.
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S03E20 Nation's Opening Festival
August 30 · 24min find the promo
Show synopsis
It's day one of the festival, and Rimuru finally gets to see all of his friends' performances and presentations. As he's enojying the festivities, he's summoned by Luminus...
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S03E21 The Martial Arts Tournament
September 6 · 24min find the promo
Show synopsis
A martial arts tournament is being held! The winner will be given the right to challenge Rimuru. The hero, Masayuki, will be participating in the tournament. Rimuru wants to uncover the hero's true strength, so they get Geld and Gobta to participate.
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S03E22 Settling the Score with the Hero
September 13 · 24min find the promo
Show synopsis
Gazel and Elmesia pledge to assist Rimuru with Tempest's lack of funding. Elmesia then proposes an alliance, but she's concerned about the danger Diablo poses.
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S03E23 The Labyrinth Is Opened
September 20 · 24min find the promo
Show synopsis
Rimuru's dungeon is finally revealed, and his new ally Masayuki is among its first challengers. Later, after the festival is over, Rimuru's biggest job still awaits.
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S03E24 After the Festival
September 27 · 24min find the promo
Show synopsis
Rimuru pays the merchants with the gold coins he's procured. The merchants try to garner futher favor, but Rimuru ceases trading with them. Rimuru then gathers his allies and calls for action again the eastern merchants who are operating in secret.