‘That Time I Got Reincarnated as a Slime’ Season 4 Episode 20 Release Date and Time Confirmed
Fans of ‘That Time I Got Reincarnated as a Slime’ are gearing up for another new chapter in Rimuru Tempest’s ongoing story, and the wait for Episode 20 is almost over. The isekai favorite has kept a consistent weekly rhythm through most of its fourth season, and that pattern is set to continue into late August.
With Episode 19 having arrived on August 21 and Episode 20 following on August 28, viewers can expect the season’s Friday release schedule to hold steady for now, though Japanese broadcast changes have shifted dates before. Here is a full breakdown of when and where to catch the new episode, along with context on where the story currently stands.
Season 4 Episode 20 Release Date and Time
Episode 20 of ‘That Time I Got Reincarnated as a Slime’ Season 4 is scheduled to arrive on Friday, August 28. The season has largely followed a weekly Friday cadence, though that rhythm has previously been subject to adjustments from the Japanese broadcast side.
For the prior episode, Episode 19 released in Japan at approximately 12am JST on Friday, August 21, which translated to roughly 3pm GMT, 8am PT, and 11am ET for international audiences. Fans expecting Episode 20 should anticipate a similar release window, since new episodes of the season are set to release on Fridays at 7am PT and 10am ET on Crunchyroll.
It is worth noting that the season has not always stuck to its original plan. Episode 17 was bumped from its scheduled July 31 release to August 7 due to programming changes in Japan, with a recap special filling the original slot. That history is a reminder that dates can still move even after being announced.
In Japan, the series continues to air on NTV’s Friday Anime Night programming block, while tracking sites list the next subbed episode as arriving that same Friday. International viewers should keep an eye on official schedules in case of last minute shifts.
Where to Watch the New Episode
‘That Time I Got Reincarnated as a Slime’ Season 4 remains a Crunchyroll exclusive outside of Japan. Crunchyroll streams the season across North America, Central America, South America, Europe, Africa, Oceania, the Middle East, CIS, and Southeast Asia.
Episodes are released in the native Japanese language with subtitles, and Crunchyroll also offers an English dub alongside the subtitled version. That dual release option has made the season accessible to both longtime fans who prefer the original voice cast and newer viewers who favor dubbed content.
Inside Japan, the anime airs across a wide network lineup including Tokyo MX, MBS, BS11, TV Aichi, TVh, TVQ, GYT, GTV, TUF, and AT-X. That broad domestic footprint reflects how central the franchise has become to the anime industry’s Friday programming block.
The series has also expanded beyond weekly television. A second film, ‘Tears of the Azure Sea,’ released on February 27, 2026, shortly before Season 4 began airing, giving fans an additional way to stay connected to the story between seasons.
Season 4 Story and Episode Count
Season 4 picks up with Rimuru’s larger ambitions for his nation. According to an official overview, Demon Lord Rimuru’s dream of an alliance between humans and monsters takes a step closer to reality as Tempest continues to prosper, while Granville Rozzo and his granddaughter Maribel Rozzo clash with Rimuru over their own plan to protect mankind by ruling over it, and Demon Lord Leon works toward his own goals in El Dorado as a new Hero’s awakening draws near.
That conflict has continued to build across recent episodes. With political tension escalating across Tempest, Lubelius, and El Dorado, the show has been approaching a point where several long simmering conflicts appear ready to come to a head, including Diablo’s clash with Raine, Yuuki’s next move, and the deepening standoff between Rimuru and the Rozzo family.
In terms of source material, this season adapts chapters 100 through 115 of the original manga, giving readers of the source material a sense of how much ground remains before the current stretch of episodes wraps.
On the production side, Studio Eight Bit remains behind the animation, continuing its work from the previous three seasons. That continuity in staff has helped keep the visual style and pacing consistent as the story has grown more complex.
Season 4 Structure and Future Episodes
‘That Time I Got Reincarnated as a Slime’ Season 4 is being told on a larger scale than any previous run. The fourth season is planned to run for five split cours, beginning April 3, 2026, with the first two cours airing consecutively.
That structure means the current batch of episodes is only part of a much longer rollout. The remaining three cours do not yet have confirmed release dates, which leaves the timing of the season’s later chapters uncertain for now.
Overall scope has also been laid out for the franchise. It has been officially announced that the anime will total 60 episodes across its five planned cours, making this the most ambitious season the series has attempted since its debut in 2018.
Given how much story remains, fans have reason to expect the political drama between Tempest, the Rozzo family, and El Dorado to keep escalating well past Episode 20, with the show’s larger arc likely to stretch into further cours down the line.
With the Rozzo family’s plans against Tempest reaching a boiling point and Leon’s motives in El Dorado still murky, what do you think Episode 20 will reveal about where Rimuru’s alliance truly stands?
