‘That Time I Got Reincarnated as a Slime’ Season 4 Episode 23 Release Date, Time, Where to Watch

Rimuru Tempest is on a roll, and so is ‘That Time I Got Reincarnated as a Slime’ as it heads into the final stretch of its fourth season. This isekai favorite has kept fans engaged with a weekly Friday schedule, and the anticipation for the next episode is building.

With the Founder’s Festival politics heating up and the Rozzo family eyeing Rimuru’s expanding influence, this season has delved deeply into nation-building drama intertwined with real combat stakes. Here’s everything you need to know about the release of episode 23, where to stream it, and a recap of the ongoing story.

Episode 23 of ‘That Time I Got Reincarnated as a Slime’ season 4 is set to premiere on Friday, September 18, 2026, following the established weekly release pattern. This episode comes right after episode 22, which aired on Friday, September 11, 2026.

For international audiences, the release times remain consistent. New episodes will be available at 7 a.m. Pacific Daylight Time, 8 a.m. Mountain Daylight Time, 9 a.m. Central Daylight Time, 10 a.m. Eastern Daylight Time, and 2 p.m. Greenwich Mean Time.

While the season has faced some scheduling challenges, including a shift for one episode from a planned July 31 release to a later August date due to broadcast changes in Japan, it has managed to maintain a steady flow of new content for fans.

Streaming options for this season have expanded compared to previous installments. In addition to Crunchyroll, ‘That Time I Got Reincarnated as a Slime’ season 4 is also available on Netflix, allowing subscribers of either platform to stay updated with new episodes each week.

For those who prefer to purchase episodes instead of subscribing, digital retail options are available. Fans can buy episodes through Amazon Video and the Apple TV Store, as well as the Crunchyroll Amazon Channel.

New episodes continue to be accessible to a global audience, releasing on Fridays at 7 a.m. PT and 10 a.m. ET on Crunchyroll, complete with English subtitles and an English dub. In Japan, the anime airs on various networks including Tokyo MX, MBS, BS11, TV Aichi, TVh, TVQ, GYT, GTV, TUF, and AT-X.

This fourth season has become the most ambitious yet for the franchise, confirmed to run for a total of 60 episodes split across five cours, with the first two cours airing consecutively. This means the current episodes are just the beginning of a much larger rollout.

The main conflict in these episodes focuses on ideology rather than mere monster battles. After the Founder’s Festival and establishing diplomatic ties with various nations, the Jura-Tempest Federation is working towards a world where humans and monsters coexist, known as the Human-Monster Coexistence Sphere.

However, there are those who view the rise of Demon Lord Rimuru as a significant threat, with Granbell Rosso and his granddaughter Mariabell Rosso at the forefront of this opposition.

Fan reactions to the season have remained largely positive, even during its more dialogue-heavy moments. Viewer discussions have praised the show’s ability to balance lighthearted character interactions with deeper emotional arcs, particularly with characters like Luminous Valentine, whose long-hidden guilt has become a standout element for dedicated fans of the source material.

The season has maintained its well-known voice cast, ensuring continuity for long-time viewers. Miho Okasaki reprises her role as Rimuru Tempest, the series’ protagonist.

The supporting cast is also extensive, featuring Anzu Haruno as Ramiris, Asuna Tomari as Gobta, Chikahiro Kobayashi as Ranga, Daisuke Ono as Granbell Rosso, Hōchū Ōtsuka as Hakurō, Inori Minase as Mariabell Rosso, Kanehira Yamamoto as Rigurd, and Lynn as Luminus Valentine.

Musically, the production retains its familiar energy while introducing new elements for this arc. Eir Aoi performs the opening theme ‘Esoragoto (Unrealistic),’ while CiON provides the ending theme ‘Katsubō (Craving).’

With Granbell and Mariabell Rosso tightening their hold on the narrative and Leon still scheming from El Dorado, episode 23 has a lot to cover before this cour concludes. Which side are you supporting as Rimuru’s dream of coexistence clashes with the Rozzo family’s ambitions, and what do you think lies ahead for Tempest?