Slime Season 4 Premieres April 3 With Five Cour Run Confirmed

That Time I Got Reincarnated as a Slime Season 4 began streaming on April 3, 2026, kicking off an ambitious five cour run that 8bit has structured as the longest single season order in the franchise's history. The new arc adapts material from the light novel's mid game story, with Demon Lord Rimuru moving toward an alliance between humans and monsters.

The five cour structure

8bit has confirmed the season is split into five cours running across roughly fifteen months of broadcast, totalling approximately 60 episodes. The first 24 episodes air consecutively across the initial two cours starting April 3, with the remaining three cours scheduled for later windows that have not yet been pinned down to firm broadcast dates. The continuous cour approach is rare for long running television anime and signals confidence from the production committee that the audience for the franchise is large enough to sustain a full year of weekly episodes.

Returning staff and direction

Atsushi Nakayama directs the new season at 8bit, the studio that has handled all previous television seasons of the franchise. Series composition continues from Tatsuhiko Urahata. Composer Elements Garden is back on score duty, and the original light novel's creator Fuse and illustrator Mitz Vah are credited on the production committee. The creative continuity is one reason the franchise has retained its core fanbase across years of side stories, OVAs, and spinoffs.

What the season covers

Season 4 adapts the chapters where Demon Lord Rimuru begins building toward his alliance between human and monster nations. Antagonists Granville Rozzo and his granddaughter Maribel are positioned as central figures in the early episodes, and Demon Lord Leon, operating from El Dorado, plays a role later in the run. The season also introduces the dungeon system that the franchise's mobile games have been previewing for over a year, and sets up the awakening of a new Hero figure that the light novels treated as a major story pivot.

Where to watch

Crunchyroll is streaming the season globally, including in India, with new episodes dropping at 7:00 a.m. PT on Fridays, which translates to 7:30 p.m. IST the same day. Crunchyroll has confirmed a same day English dub release for the season, with the previous English voice cast returning. A Hindi dub has not been announced, though Crunchyroll's regional dub strategy in India has been expanding through 2026.

Why fans were waiting

Season 3 wrapped its broadcast in late 2024 and was followed by The Movie Scarlet Bond and a series of OVA episodes. The two year gap between seasons reflects the production runway needed for the five cour order, and 8bit has spent the interim period building the visual upgrades on display in the new season's opening sequence. The premiere episode features the first proper look at the dungeon mechanic that several upcoming gameplay focused arcs depend on.

The season runs every Friday with no scheduled breaks across the first 24 episode block.