That Time I Got Reincarnated as a Slime, Complete, in order
“Every season, movie, and side story, in the right order.”
That Time I Got Reincarnated as a Slime is one of the longest-running isekai franchises still airing: four TV seasons (two of them, Season 2 and the current Season 4, split into separate broadcast blocks), two movies, a twelve-episode spinoff, and a run of one-episode character specials that keep landing just before or after a new season starts.
This page orders all of it. The four seasons and both movies are essential: skip any of them and the plot stops making sense. The character specials and side stories, including Visions of Coleus and the Slime Diaries spinoff, are marked optional. They add real context and are worth the time, but nothing in the main story depends on them. The chibi shorts and home-video bonus footage are marked skippable, since they carry no story at all.
One title is left off this page on purpose: a three-minute Chinese brand tie-in commercial that MyAnimeList catalogs under the Tensura name but that isn't part of the story.
Building Tempest
Rimuru dies as a Tokyo salaryman and wakes up a slime in the Jura Forest, then talks, absorbs, and organizes his way into becoming lord of a monster nation.
Veldora and the Great Sage talk through Rimuru's first year from inside his stomach, in the two weeks before the story moves on.
Aired eight days after the Season 1 finale as a bridge episode rather than a clip show. It reframes the Orc Disaster and the early goblin diplomacy through Veldora's running commentary, and shows how attached he's grown to Rimuru by the time he's finally let out.
Five side stories set inside Season 1's timeline: hot springs, a school-festival stand-in, and other days off the main plot never had room for.
These sit after Season 1 rather than before Season 2 because nothing here moves the plot forward. They exist for the cast, particularly the quieter Tempest residents who get more screen time in a beach episode than they ever do fighting demon lords.
One-minute SD shorts of the cast bickering, mostly about food and rank.
The War Arc
A one-episode look at Hinata Sakaguchi, the Holy Knight captain whose grudge against Rimuru anchors Season 2's opening arc.
Broadcast a week before Season 2 itself as a lead-in, and it earns that placement. Hinata shows up already furious with almost no introduction once Part 1 starts, and this episode is where that grudge actually gets explained.
A human kingdom moves to erase Tempest, and Rimuru makes the decision that changes what kind of ruler he is.
A twelve-episode spinoff following Tempest's residents through ordinary days, no war and no diplomacy.
Aired in the gap between Season 2's two halves as a tonal breather, and it works best watched there: right after the war arc's fallout, before Part 2 escalates things again. Skip it and the plot loses nothing, but it's the version of Tempest the first two seasons were building toward.
Veldora and the Great Sage catch up on Season 2 Part 1's war, again from inside Rimuru's stomach.
Aired the week before Part 2 picked up, doing for the war arc what the first Veldora special did for Season 1: recapping the stakes through commentary rather than a clip reel, right before the story needs you caught up.
Tempest deals with what winning a war actually costs, and Rimuru has to turn a monster army into a functioning, recognized nation.
Tempest Goes International
Rimuru leads a diplomatic mission to the poisoned kingdom of Raja, alongside Benimaru's long-lost ogre brother Hiiro.
Fully canon, not a clip movie: the first time the story treats Tempest as an established nation that other countries negotiate with rather than fear.
More one-minute SD shorts, running through the winter after Scarlet Bond's release.
A short two-part piece produced outside the main manga and light novel continuity.
Two one-minute shorts released alongside Scarlet Bond's home video.
A three-episode side story following Coleus, a supporting character whose arc runs parallel to the main cast rather than through it.
Adapts one of the side-story volumes rather than the main light novels, which is why Season 3 never references it directly. It's here for readers following the wider Tensura material, not required for an anime-only path.
The Continental Stage
A one-episode focus on Diablo, the demon Rimuru summoned and named back in Season 2, six days before Season 3 begins.
Plays the same lead-in role the Hinata special played for Season 2: it airs just ahead of the season to spotlight a character about to get a much bigger part.
Tempest's diplomacy expands onto the wider continental stage, and Rimuru confronts threats that no longer stay contained to one region.
A one-episode look back at Luminous Valentine, released partway through Season 3's run.
Best watched after finishing Season 3 rather than mid-run, since it leans on context the season itself reveals gradually.
The Current Chapter
The second Tensura film, released between Season 3 and Season 4.
Placed here to match its release date. Like Scarlet Bond, it's canon rather than a side story.
The current season, continuing directly from where Tears of the Azure Sea and Season 3 left Tempest's standing.
The next continuation of Season 4, not yet aired.
Listed here to keep the watch order current. There's nothing to watch yet: check back once it airs.
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