The latest preview for Tensura Season 4 has officially been released, and the announcement came with a massive surprise. That Time I Got Reincarnated as a Slime will air in an ambitious five split-cour format, ensuring fans have steady content stretching well into next year.
A split cour structure means the season will be broadcast in separate parts with breaks in between, rather than running continuously. With five split cours planned, Season 4 is shaping up to be one of the franchise’s longest and most expansive adaptations yet. For longtime viewers, this essentially guarantees a packed schedule of episodes covering major arcs from the source material.
The newly released trailer showcases noticeably improved visuals, featuring smoother battle choreography, enhanced lighting effects, and more detailed character designs. As the story continues to follow Rimuru Tempest’s evolution from slime to Demon Lord and nation builder, expectations are high for large-scale conflicts and deeper political developments within the fantasy world.
Season 4 also introduces brand-new theme songs:
– Opening (OP): “Esoragoto” performed by Eir Aoi
– Ending (ED): “Katsubo” performed by CiON
Eir Aoi’s involvement has particularly excited anime music fans, as she is known for delivering powerful and emotionally charged openings. Meanwhile, CiON brings a fresh musical tone to the ending theme, adding a new atmosphere to the series’ closing sequences.
With its extended format, upgraded animation quality, and strong musical lineup, Tensura Season 4 is positioning itself as one of the most ambitious installments in the franchise so far. For fans of isekai fantasy packed with world-building, political intrigue, and explosive battles, this upcoming season promises long-term entertainment that truly lives up to the hype.
