Sat. Apr 4th, 2026

Rimuru Tempest Returns: “That Time I Got Reincarnated as a Slime” Season 4 Begins

Rimuru Tempest and characters from That Time I Got Reincarnated as a Slime Season 4 promotional art

One of the most popular isekai anime series makes its highly anticipated return.

The fourth season of “That Time I Got Reincarnated as a Slime” has officially begun streaming on Crunchyroll. The premiere episode marks the start of the first of five planned cours (parts), which is expected to consist of approximately nine episodes. While the release dates for all subsequent parts have not been fully disclosed, the second cour is anticipated to launch in the summer.

The plot continues to follow Rimuru Tempest as he strives to forge a stronger alliance between humans and monsters. As his nation grows, so do the political tensions and conflicts. He faces opposition from Granbell Rosso and his granddaughter Maribel, while the Demon Lord Leon Cromwell pursues his own enigmatic agenda. Concurrently, the world prepares for the emergence of a new Hero.

Character art from That Time I Got Reincarnated as a Slime
Illustration by Taiki Kawakami, Fuse, KODANSHA/“Ten-Sura” Project

Studio 8-Bit is once again handling the production. Naokatsu Tsuda serves as director, Hitomi Ogawa is responsible for the script, and Ryoma Ebata designed the characters. The music is composed by R.O.N. Eir Aoi performs the opening theme “Esoragoto,” while the ending theme “Katsubo” is performed by the group CiON.

Previously, the feature film “That Time I Got Reincarnated as a Slime: Scarlet Bond” was also released in Russian cinemas, with its theatrical run beginning on April 2nd.

By Gareth Wickshire

A Manchester-based gaming journalist with over eight years of experience covering the UK gaming scene. Started as a freelance writer for indie gaming blogs before establishing himself as a trusted voice in the industry. Specializes in breaking news about British game developers and emerging gaming trends. Known for his in-depth coverage of gaming events across England and insightful interviews with industry professionals.

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