Hold on to your potions, Tensura fans — the That Time I Got Reincarnated as a Slime franchise just announced not one, but TWO massive reveals that have the anime community absolutely buzzing. Rimuru Tempest is nowhere close to done conquering both the isekai world and the anime charts, and these announcements prove it.
Season 4 Part 3 Confirmed for July 2027
The official Tensura production committee confirmed that Season 4 will return for a 3rd part in July 2027. For those keeping track, this makes the series one of the longest-running modern isekai adaptations — and fans could not be happier about it.
Author Fuse‘s sprawling light novel saga has always had more material than the anime could cover in standard two-cour seasons, and the decision to extend Season 4 into a third part signals that 8-Bit Studio is committed to adapting the story properly rather than rushing through arcs. The arc in question? The highly anticipated War Arc, where Rimuru’s Jura Tempest Federation faces off against the Western Holy Church and the Empire in full-scale conflict.
Miho Okasaki, who voices Rimuru, expressed her excitement on social media, saying she was thrilled to bring even more emotional depth to the character as the stakes continue to escalate. Director Atsushi Nakayama has been at the helm since Season 1, and his consistency is a major reason the show maintains its quality across so many episodes.
Clayman’s Revenge: A Villain Spinoff Nobody Saw Coming
Here is where things get really interesting. The franchise also revealed a brand-new spinoff anime titled Clayman’s Revenge, set to debut in April 2027. Yes, you read that right — Clayman, the Demon Lord who met his dramatic end at Rimuru’s hands during the Walpurgis arc, is getting his own show.
Details are still emerging, but early reports suggest the spinoff will explore Clayman’s backstory, his relationship with Kazalim (the Curse Lord), and the events that shaped him into the manipulative Demon Lord fans loved to hate. There are also hints that the story might explore an alternate timeline or a “what if” scenario where Clayman survived his confrontation with Rimuru.
This is a bold move by the production team. Villain-focused spinoffs have become increasingly popular in anime — just look at the success of Frieza‘s expanded role in Dragon Ball and the fan demand for more Sukuna backstory in Jujutsu Kaisen. Clayman’s complex motivations make him a perfect candidate for deeper exploration.
Why This Matters for the Isekai Genre
The Tensura franchise has consistently been one of the top-performing isekai series alongside Mushoku Tensei and Re:ZERO. With Kadokawa and Bandai Namco both heavily invested in the IP through games, merchandise, and cross-media projects, the decision to expand the anime universe makes perfect business sense.
What sets Tensura apart from its competitors is its world-building. Fuse created a political landscape that rivals actual fantasy novels — alliances, betrayals, economic systems, and power hierarchies that go far beyond the typical “overpowered protagonist defeats everything” formula. Season 4 Part 3 is expected to lean heavily into these political dynamics, especially the tension between Guy Crimson, Milim Nava, and Rimuru’s growing influence.
Fan Reactions Are Off the Charts
Social media exploded within minutes of the announcement. The hashtag #TensuraSeason4 trended on X (formerly Twitter) in Japan, the United States, and multiple Southeast Asian countries. Fan artists immediately began sharing Clayman-focused artwork, and speculation about the spinoff’s plot has dominated anime forums and Reddit threads.
One particularly popular theory suggests that the Clayman spinoff could tie directly into Season 4 Part 3’s storyline, potentially revealing information about Yuuki Kagurazaka‘s master plan that has been teased throughout the main series. If true, the spinoff would not just be fan service — it would be essential viewing.
What Do You Think?
Are you excited about Rimuru’s return in Season 4 Part 3? And more importantly — does Clayman deserve a redemption arc, or should villains stay villains? Is a Clayman-focused spinoff the right call, or would you rather see a spinoff about Shion, Benimaru, or Diablo? Drop your thoughts in the comments below — we want to hear your hottest takes!
Stay tuned for more updates as the official trailer and cast reveals for both Season 4 Part 3 and Clayman’s Revenge are expected in the coming months.
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