That Time I Got Reincarnated as a Slime’s 2026 Return Proves Long Anime Seasons Are Better

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Look, I know isekai anime can feel a little… samey these days, especially in 2026. But honestly, there have been some really good ones over the last ten years that take those familiar ideas and just run with them, making everything feel new again. And I’m so excited because one of my favorites, , is finally getting a new season this year!

Since its start in 2018, the anime That Time I Got Reincarnated as a Slime (known as Tetsura in Japan) has become a leading series in the isekai genre. Even though it’s only had three seasons so far, the upcoming fourth season, premiering in April, suggests the show aims to demonstrate that longer anime seasons are more satisfying than the shorter seasons that were popular in Winter 2024.

That Time I Got Reincarnated as a Slime Is a Quintessential Isekai Masterpiece

Many fans consider That Time I Got Reincarnated as a Slime to be the perfect example of a well-made modern isekai anime. The series goes beyond a simple power fantasy, offering a compelling story thanks to its well-developed protagonist and plot. The main character, Rimuru, is particularly thoughtful, and his actions significantly contribute to building a rich and detailed world.

Rimuru’s rapidly expanding nation is set within the vast Great Jura Forest. Unlike many other ‘isekai’ stories focused on adventure, Reincarnated as a Slime delves deeply into the world’s internal politics and societal structures. This complex political backdrop is balanced by a relaxed and peaceful atmosphere, making the series enjoyable for fans of both action and those who prefer more laid-back anime.

Rimuru is a smart and likable character, and while he’s powerful, he’s not portrayed as a helpless underdog like in many other stories of this type. He also cleverly maximizes the potential of an ability that’s generally considered quite weak. Plus, the strong supporting cast in Reincarnated as a Slime prevents the story from feeling like it depends entirely on him to keep things going.

Unlike many isekai stories where the main character is incredibly powerful and almost deified, this one takes a different approach. It also avoids common tropes like a harem, and while some romantic elements are present, they’re much more subtle than in similar series. This results in a story that cleverly subverts familiar isekai ideas, making it both enjoyable and genuinely well-crafted.

Reincarnated as a Slime’s Return Makes Spring 2026 a Packed Season For Isekai Fans

The anime That Time I Got Reincarnated as a Slime first appeared in 2018, and the second season didn’t arrive until 2021. This series helped kick off the popular trend of ‘isekai’ anime. Season 2 was released in two parts: one from January to March, and the other from July to September. Season 3, which didn’t split into parts, followed the same three-year pattern, airing from April to September 2024. Good news for fans, though – the next installment of the story shouldn’t take as long to arrive.

The premiere of the next season is set for April 3, 2026. While the animation will still be done by Eight Bit, this season of That Time I Got Reincarnated as a Slime will be produced in a new way. Season 4 will have five parts, which is significantly longer than previous seasons.

Season 4 is going to be much longer than previous seasons of Reincarnated as a Slime, with around 60 episodes – a huge number for both the series and most anime today. Each of the first three seasons only had 12 episodes, so Season 4 will be nearly twice as long as all of them put together. This comes shortly after the movie, That Time I Got Reincarnated as a Slime the Movie: Tears of the Azure Sea, which was designed to connect Seasons 3 and 4. Because the new season is so lengthy, it’s unclear how much of the original light novels it will cover.

Reincarnated as a Slime Season 4 Will Adapt Five Times the Content

The fourth season of That Time I Got Reincarnated as a Slime will cover volumes 10 through 12 of the original novels by Fuse and Mitz Vah. The season will primarily focus on the “Founding of the Nation” arc, and may even go a little further into the story. This is similar to how previous seasons adapted about three volumes each. However, the amount of content could change if the anime adds new scenes and details.

Considering how previous anime movies weren’t directly based on the manga, this new season could cover more material. Plus, since it’s five times longer than past seasons, it’s unlikely that only volumes 10 through 12 will be adapted. It’s possible the creators are trying to keep momentum going and finish the story quickly, avoiding long waits between seasons.

The Reincarnated as a Slime light novel series has 23 volumes, with the last one released last year. If the upcoming season covers material past volume 12, it will have adapted more than half of the entire story. While fans would be sad to see the anime end, it’s understandable since the original novels are already finished.

Many believe the isekai genre has already peaked in popularity, and this feeling started appearing shortly after the second season of That Time I Got Reincarnated as a Slime finished airing. Ending a series before it overstays its welcome can help keep fans engaged. While it’s still to be seen how the fourth season of the anime will perform, it’s clear the story is building towards a major climax as Rimuru and his companions continue their journey.

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2026-03-23 05:44