Goblins gather around Rimuru's blue slime body in a sunny village.
©川上泰樹・伏瀬・講談社/転スラ製作委員会
Series · 2018

That Time I Got Reincarnated as a Slime

転生したらスライムだった件

A small blue body acquires extraordinary possibilities, then discovers that a community needs more than a powerful protector.

A small blue body acquires extraordinary possibilities, then discovers that a community needs more than a powerful protector.

Commitment
Approx. 38 hours · 96 episodes
Coverage
Main numbered television route through episode 96, season 4 episode 24, broadcast in September 2026: 24 + 24 + 24 + 24 = 96. Season 4’s further cour is announced for July 2027 and is not counted. Recaps outside this main numbering, Slime Diaries, OADs, Visions of Coleus and films are separate. The 24-minute multiplier is a nominal estimate.
Start here
Season 1, episode 1
Content note
Fantasy fighting, bloody injuries, sexualised imagery and threats to communities.

A man dies in modern Japan and wakes in a cave without arms, legs or a human face. His new body is a slime, a small blue creature whose unpromising shape conceals an unusual way of learning about the world. A voice called Great Sage supplies information; another ability, Predator, lets him take things inside himself, analyse them and acquire new possibilities.

That Time I Got Reincarnated as a Slime begins with that private transformation, then gradually changes the size of the problem. Being able to survive an encounter is useful. Finding a way for different creatures to live together requires food, shelter, skills and agreements that one powerful body cannot supply alone.

What can a body without hands discover?

The cave is an unfamiliar environment before it becomes an opportunity. A slime’s shape changes what movement, perception and contact mean. Predator makes investigation unusually literal: the protagonist can absorb something and learn what it offers. Great Sage gives his experiments a counterpart, turning solitary discovery into a conversation with an analytical voice.

A translucent blue slime rests on brightly coloured stone inside a purple-lit cave.
An apparently simple body opens an unfamiliar way of exploring the world. Original episode 1. ©川上泰樹・伏瀬・講談社/転スラ製作委員会

The enormous dragon Veldora offers a different surprise: something frightening can also be lonely and willing to talk. The connection gives the new slime the name Rimuru and puts companionship beside the expanding toolkit from the beginning. A creature’s appearance is an unreliable guide to the relationship it might offer.

The progression is therefore about more than collecting attacks. Each encounter can add information, a way to communicate or somebody to care about. Rimuru quickly becomes formidable; this is not a long story about remaining the weakest monster in the room.

Why does a goblin village change the adventure?

Outside the cave, Rimuru encounters goblins whose needs turn power towards a shared purpose. Helping them means entering a community rather than simply moving on after a successful fight. New relationships bring people who need protection and practical arrangements that must outlast the immediate danger.

That changes what an upgrade can mean. A useful ability might win a battle, but it can also become a resource for a settlement. The story has room for the satisfaction of expanding capability and for the less spectacular question of what happens after the victory.

The village’s needs produce an early journey to Dwargon, a dwarven nation. Rimuru is looking for artisans who can help provide food, clothes and shelter for goblins and tempest wolves. The appeal is wonderfully practical: a powerful monster still needs people who know how to make things.

Who brings knowledge that Rimuru does not have?

The dwarven craftsman Kaijin has a problem of his own: twenty magical-metal longswords must reach the king in five days. Rimuru arrives looking for someone who can help a village and finds a specialist already under pressure to finish another job. Recruiting expertise means entering somebody else’s working life.

The two needs give the meeting more interest than a simple search for the next upgrade. The goblins need skills that will remain useful after Rimuru leaves the workshop; Kaijin has an immediate deadline. An adventure about growing stronger has made room for the question of who has the time and knowledge to make everyday life possible.

The blue slime rests on a tree stump beside a small green shoot in bright daylight.
The journey leaves room for small, everyday pauses beside the larger confrontations. Original episode 3. ©川上泰樹・伏瀬・講談社/転スラ製作委員会

The visual contrast helps. A rounded, translucent protagonist sits beside rough wood, green plants and angular monster bodies. Rimuru can look small and approachable even while the surrounding story gives him substantial power. The shape supports conversation and comedy as readily as a fight.

What does the television route include?

Begin with season 1, episode 1, from 2018, then follow the main numbered television seasons in release order. The released main route currently runs through season 4, episode 24, overall episode 96, in September 2026.

The four counted blocks contain 24 episodes each. A nominal 24 minutes per episode gives about 38 hours. The further season-four cour announced for July 2027 is outside that total. Slime Diaries, the OADs, Visions of Coleus and the films are separate works, rather than extra numbered episodes to add silently to this route.

Expect action and bloody danger alongside the community’s warmer routines. Growing power and a busy settlement make a different rhythm from an adventure built entirely around narrow victories.

What does the original promotional video offer?

The first promotional video belongs to the original 2018 television adaptation. It provides an earlier entry point than the continuation and film campaigns.

Original 2018 series · Bandai Namco Filmworks · first PV. Opens YouTube.

Sources

Official archives and character pages can reveal later abilities and outcomes.