‘That Time I Got Reincarnated as a Slime’ Season 4 Episode 18 Release Date and Time

Rimuru Tempest is back in action, and the anticipation for the next chapter of ‘That Time I Got Reincarnated as a Slime’ Season 4 is almost at an end. This isekai favorite has emerged as one of the most popular anime of the year, and Episode 18 promises to maintain the momentum with fresh political intrigue and monster diplomacy.

For fans closely following the schedule, this episode comes after a recent scheduling shakeup, making it crucial to know the exact release window this time around.

Episode 18 of ‘That Time I Got Reincarnated as a Slime’ Season 4 is set to premiere on August 14, 2026, according to TVmaze’s episode guide for the series. This places it a week after Episode 17, which aired on August 7, 2026, following a delay from its originally planned July 31st slot.

The delay occurred because the official website for the series confirmed that Episode 17 would not air as scheduled, with the broadcast pushed back due to programming changes in Japan, as reported by ComicBook.com. This adjustment effectively shifted the entire back half of the summer lineup, including Episode 18, into its current time slot.

For international viewers, new episodes of ‘That Time I Got Reincarnated as a Slime’ Season 4 are released on Fridays at 7 a.m. PT and 10 a.m. ET, according to Final Weapon. This timing has remained consistent throughout the season’s Crunchyroll rollout, even with the recent one-week delay in the Japanese broadcast.

Episodes continue to be available with both English subtitles and an English dub, as noted by Final Weapon, making it easy for viewers to binge the season in their preferred format without waiting for a separate dub release later.

Crunchyroll is the primary platform for streaming ‘That Time I Got Reincarnated as a Slime’ Season 4 across a wide range of regions. The platform is available in North America, Central America, South America, Europe, Africa, Oceania, the Middle East, the CIS region, and Southeast Asia, according to Final Weapon.

In Japan, the anime airs on NTV as part of its Friday Anime Night programming block, which has become a notable platform for high-profile anime releases. ‘Slime’ has been a part of that lineup since the season began airing on April 3, 2026, as per Wikipedia’s season overview.

Prime Video has also been providing episode synopses for the season, offering viewers another way to keep up with the story beyond Crunchyroll’s simulcast.

Season 4 finds Rimuru further along in his quest to forge a lasting alliance between humans and monsters, with the stakes continually rising. According to Crunchyroll’s official season description via Final Weapon, Demon Lord Rimuru’s dream of that alliance inches closer to realization, even as Granville Rozzo and his granddaughter Maribel Rozzo confront him with their own plan to protect mankind through domination.

Meanwhile, in El Dorado, Demon Lord Leon is pursuing his own objectives, and the season’s overview hints at the imminent awakening of a new Hero, as noted by Final Weapon.

The latest episodes have delved deeply into political maneuvering. According to Prime Video’s episode descriptions, a series of unreasonable demands from the Council leads Rimuru to uncover a more profound plot at play, while an interrogation of Prince Elric’s would-be assassin reveals the puppet master behind the Council.

This storyline continues to unfold in subsequent episodes, with Prime Video’s synopses indicating that Glenda shares her knowledge about the Council and the Rozzos, while Rimuru prepares to investigate the ancient ruins linked to the conspiracy. Another entry in the same batch of descriptions confirms that the exploration of the ancient ruins of Amrita is set to begin, paving the way for a confrontation between Rimuru and Mirabel within those very ruins.

This season is shaping up to be the most ambitious in the franchise’s history. ‘That Time I Got Reincarnated as a Slime’ Season 4 is planned to span five full cours of episodes over the next couple of years, as reported by ComicBook.com, with only the first two cours having confirmed release dates as of the season’s premiere, according to Wikipedia.

This expansive scope explains why the pacing allows for more depth, with the Founder’s Festival and ongoing Council intrigue receiving the sustained attention that a shorter season could not afford, as highlighted by AnimeOshi’s analysis of the season’s early episodes.

With Veldora stirring up chaos, Benimaru eager for a fight, and Rimuru striving to maintain order with his characteristic composure, the show’s central cast continues to balance nation-building politics and combat, a hallmark of the series since its inception, according to AnimeOshi.

How do you think the standoff between Rimuru and the Rozzos will unfold once the truth about the Council is fully revealed?