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Summary
That Time I Got Reincarnated as a Slimeepisode #20 featured a massive feast for all of Rimuru’s most important guests, including some stunningly powerful figures from around the world. Rimuru put on a grand display for his visiting nobles, feeding them everything from sushi to steak, although it took a little convincing to get them started on the sushi.
The feast welcomed in some of the characters that fans have met throughout this season, like Empress Elmesia, and put Rimuru’s etiquette skills to the test. It’s fair to say that this episode was all about the food, though, and it certainly made an impression with how much all the characters seemed to enjoy it. Rimuru also delivered a grand opening speech for the festival, proudly announcing his plans for a nation where monsters, humans, elves and dwarves can all coexist peacefully. Here’s everything one needs to know to tune in and watch episode #21 ofThat Time I Got Reincarnated as a Slimeas soon as it airs.

When Do New Episodes of Slime Release?
Animated by Eight Bit, Based on the Light Novels by Fuse
That Time I Got Reincarnated as a Slimedebuts new episodes on Crunchyroll on Fridays, at 8:30 AM Pacific Time, or 11:30 AM Eastern Time. As a result,fans can expect episode #21 to air on June 19, 2025, at 8:30 AM PT/11:30 AM ET.Do note that as a result of its release being so close to the Japanese premiere, the episode will initially be available only in Japanese with subtitles. The English dub is about 3 weeks behind the subtitled version at the moment, meaning fans can also expect that episode 18, the recap episode, to be the next one dubbed.
What Happened in That Time I Got Reincarnated as a Slime Season 3, Episode #20?
Rimuru Throws A Massive Banquet
That Time I Got Reincarnated as a Slimeepisode #20 opened with Rimuru hosting a feast for all of his most important guests, including kings and empresses from around the world. He started them off with sushi prepared by Hakuro, which was embraced wholeheartedly by otherworlders like Hinata and Yuuki Kagurazaka, while those native to this world were a bit hesitant–especially because the meat came from a monster fish. However, they soon tried it and discovered a love for Tempest’s cuisine by the time the full course meal came out.
There was, however, a bit of a situation with one of Milim’s guardians, who decried the preparation methods used to cook this feast. Shuna, who prepared much of the food for this event, took this a bit personally, but made a passionate plea towards the man to at least give it a try. Shocked by the flavor, he soon took back his words. The next day, Rimuru gave a speech about his intentions and plans for Tempest, inviting any who might want to live there to join them. Rimuru’s former students, who were listening to the speech, seemed a bit shocked to finally realize that Rimuru really is a king.

That Time I Got Reincarnated as a Slime Season 3, Episode 21 Kicks off the Festival
The Long-Awaited Festival Can Finally Begin
Episode 21 ofThat Time I Got Reincarnated as a Slimeis entitled “Nation’s Opening Festival,” and will at last see the festival that the season has been build towards begin. Based on chapter 111 of the manga, fans can expect to see Rimuru giving new jobs to some of his top subordinates, particularly Shion, Benimaru, Soei, and Diablo. He’ll also meet back up with his students, asking Hinata to guide them around the festival and generally watch out for them.
Up first for the festivities should be a concert, where in the manga they play various anime theme songs with an orchestra, intermixed with classical music. Shuna and Shion will also have a special duet performance, showcasing a hidden talent of theirs which Rimuru (and fans) are only just learning about. This chapter should also see the arrival of Luminus Valentine to the proceedings, bringing in yet another extremely important figure to the festival. Fans can also expect a scientific presentation, showing off the progress that Rimuru’s academics have made in researching his special potions.

With the festival finally kicking off for real, it shouldn’t be long before the epic battles within the arena begin, bringing a dose of excitement towards the festivities. It will be interesting to see some ofThat Time I Got Reincarnated as a Slime’s most powerful figures clash in the coliseum, so hopefully that will begin soon.
That Time I Got Reincarnated as a Slime
Cast
That Time I Got Reincarnated as a Slime is an action-adventure isekai anime based on the original novels written by Fuse. Living a standard life with no actual forward trajectory, Satoru Mikami’s humdrum life is thrown into chaos when he is stabbed to death during a daily walk. However, Satoru’s life is spared when he is reborn into the body of an all-powerful slime in a fantasy world where he gets a second chance at living a more fulfilling - albeit bizarre - life.
