Slime Season 4 Returns in July 2027—After Clayman Gets an April Spinoff

The Slime calendar just got delightfully crowded. That Time I Got Reincarnated as a Slime Season 4 will return for its third cour in July 2027, but Rimuru is not the only one getting screen time. A television anime adaptation of Clayman's Revenge has also been greenlit for April 2027 [S1][S2][S3][S4].

That gives fans two firm dates instead of one fuzzy promise. The spinoff arrives first in April, followed by the main series three months later. After the first two Season 4 cours ran from April 3 through September 25, 2026, the franchise now has a clear bridge across its longer break [S3].

When Season 4 returns

Season 4 Cour 3 is officially scheduled for July 2027. The announcement answers the immediate question left by the end of the second cour: the main anime is continuing, but not on a back-to-back timetable this time [S1][S2][S3][S4].

The scale is bigger than a normal split-season pause. Season 4 is planned as a five-cour run, and July's installment will be only the third block. Dates for the fourth and fifth cours have not been announced, so the useful schedule stops at July 2027 rather than wandering into guesswork [S3][S4].

That boundary matters. There is plenty of confirmed Slime ahead, but the available evidence does not provide calendars for the final two cours. Fans can circle July for the next main-series return and leave the later boxes blank for now [S3][S4].

Clayman gets the April spotlight

Before Rimuru's story resumes, Clayman's Revenge will make its TV-anime debut in April 2027. The project adapts the spinoff manga and brings Takehito Koyasu back as Clayman, giving one of the franchise's villains a rather unexpected place at the front of the schedule [S1][S2][S3][S4].

The announced production team is already taking shape. Kentarō Sugimoto will direct at studio 8-Bit, Yūji Haibara is overseeing the series scripts, and Asumi Hashimoto and Hideki Sakai are handling character designs [S1][S2][S3][S4].

For viewers trying to keep the names straight, the two projects occupy different lanes. April's Clayman's Revenge is the newly greenlit spinoff adaptation; July's Cour 3 continues the already enormous fourth season of the main anime. The announcements share a franchise and a calendar, but they are not two labels for the same batch of episodes [S1][S2][S3][S4].

Those credits make the spinoff more than a title card tossed onto a distant slate. It has a premiere month, a returning lead voice, a studio, and named creative staff. The playful twist is that Clayman—hardly the obvious candidate for a victory lap—gets to open the franchise's 2027 anime schedule before the main show returns [S1][S2][S3][S4].

The clean version of the roadmap

The confirmed sequence is refreshingly simple. Clayman's Revenge premieres in April 2027. Season 4 Cour 3 follows in July 2027. Season 4 is planned for five cours in total, while the final two still have no announced dates [S3][S4].

That is a meaningful double update: a new spinoff has moved from manga to a dated TV anime, and the main series now has a return month. No potion of speculation is required. The franchise has already supplied enough real calendar ink to keep fans busy through next summer [S1][S2][S3][S4].