The wait for more Rimuru Tempest is almost over. The official social media channels for the TenSura franchise have confirmed that That Time I Got Reincarnated as a Slime Season 4 will premiere on April 3, 2026. This announcement is a major highlight for the Spring 2026 anime season, bringing one of the most popular isekai series back to the small screen.
What makes this news even bigger is the scale of the upcoming season. It has been revealed that Season 4 will consist of a staggering five cours in total. A “cour” is a three-month broadcasting block, meaning this season is planned to be exceptionally long. The first two cours will air consecutively, ensuring fans get a massive dose of the Tempest gang right from the start.
A Massive Five-Cour Format for the Slime Franchise
A five-cour commitment is extremely rare in modern anime production. This suggests that Studio 8-bit is planning to adapt a significant portion of the remaining light novel source material. With 23 volumes of the light novel currently published, there is plenty of story to tell as Rimuru continues to navigate the political and magical complexities of being a Demon Lord and leading the Jura Tempest Federation.
The production will once again be handled by Studio 8-bit, the team responsible for the previous seasons, the Slime Diaries spin-off, and the Scarlet Bond movie. This continuity ensures that the high-quality animation and vibrant world-building that fans have come to expect will remain consistent throughout this ambitious new run.
What Fans Can Expect from Rimuru’s Return
While specific plot details for the first episodes are being kept under wraps, the end of Season 3 left the world in a state of delicate balance. With five cours of content on the way, viewers can expect deep dives into new territories, higher stakes in the struggle between Demon Lords, and, of course, the expansion of Rimuru’s city.
For those who need a refresher, the series follows Satoru Mikami, a salaryman who dies and is reborn in a fantasy world as a lowly slime. Through kindness, strategic naming of monsters, and his “Predator” skill, he eventually rises to become a powerful Demon Lord. You can catch up on all previous seasons and spin-offs on Crunchyroll before the new episodes debut this April.
