That Time I Got Reincarnated as a Slime: Season 1

(Dub) The Storm Dragon, Veldora

23min - Mikami Satoru, a businessman, is stabbed by a criminal on the street and killed. When he regains consciousness in the darkness, he finds that he's been reincarnated as a slime!

(Dub) Meeting the Goblins

23min - The slime Mikami and the Storm Dragon Veldora decide to give each other names. Veldora gives the slime Mikami the name "Rimuru," and Rimuru comes up with a family name for both of them: "Tempest."

(Dub) Battle at the Goblin Village

23min - After leaving the cave, Rimuru encounters a village of Goblins under attack by a clan of Direwolves. Caught in the heat of the moment, Rimuru agrees to help the Goblins in their battle.

(Dub) In the Kingdom of the Dwarves

23min - Rimuru and his companions visit the Armed Nation of Dwargon in search of some artisans to help the Goblins learn to supply their own food, shelter, and clothing. However, a skirmish just outside the city gate lands Rimuru and Gobta in a prison cell.

(Dub) Hero King, Gazel Dwargo

23min - Thanks to Rimuru's skill, Kaijin was able to make and deliver all of the longswords, so they celebrate by going to a bar staffed by elf girls. One of them reads Rimuru's fortune, and sees an image of someone she believes Rimuru is destined to be with.

(Dub) Shizu

23min - One day, while working on the improvements to the Goblin Village, Rimuru meets a trio of adventurers and a masked woman named Shizu. Shizu turns out to be the person Rimuru is destined to be with, according to his fortune.

(Dub) Conqueror of Flames

23min - The Demon Lord Leon Cromwell summoned Shizu from Tokyo as it burned during the air raids, and then forced the high-ranked spirit Ifrit to possess her. After taking over Shizu's body, Ifrit began to rampage.

(Dub) Inherited Will

23min - When Shizu was still with Demon Lord Leon, it was a Hero who rescued her. That Hero was Shizu's inspiration to help as many people as she could for many years.

(Dub) Attack of the Ogres

23min - Rimuru and the Goblins' village is developing nicely. The Dwarves are building houses and furniture, and the local Goblin Lords have appointed Rigurd as the Goblin King. As Rimuru watches everything come together, he decides to test his new skills.

(Dub) The Orc Lord

23min - Only six members of an Ogre clan remain after an attack by an Orc army led by a mysterious majin wearing plate mail and a clown mask. Rimuru asks the Ogres to join his ranks, and they accept on the condition that they will get to defeat the Orc's leader.

(Dub) Gabiru is Here!

23min - Rimuru's village has gained Benimaru and the other Ogres as its newest allies. Soon after, the Lizardman Gabiru visits the village. Gabiru has been visiting Goblin villages throughout the Great Forest of Jura to ask for aid in fighting off the Orc army.

(Dub) The Gears Spin Out of Control

23min - Treyni reveals the true goal of the Orcs, and explains that all serving under the Orc Lord are affected by the unique skill, "Starved." Rimuru resolves to defeat the Orcs and the Demon Lord.

(Dub) The Great Clash

23min - Rimuru and his Goblin riders set out for the marshlands to finalize their alliance with the Lizardmen. On the way, they save a Lizardman who'd been attacked by the Orcs.

(Dub) The One Who Devours All

23min - The majin Gelmud makes his appearance at last. His true goal was to evolve the Orc Lord into the Orc Disaster, a Demon Lord, and have him reign over the Forest of Jura.

(Dub) The Jura Forest Alliance

23min - Post-war arrangements following the battle with the Orcs have begun. At the meeting, Rimuru reveals that he made a promise with the Orc Disaster, Geld, to take all of the Orcs' sins upon himself.

(Dub) Demon Lord Milim Attacks

23min - The Jura Tempest Federation, with Rimuru as its leader, has formed an alliance with the Armed Nation of Dwargon. Just as Rimuru thinks there are only peaceful days ahead, he senses an enormous mass of magical power heading straight for his location.

(Dub) The Gathering

23min - The Demon Lord Carrion has sent one of his Three Beastketeers, Phobio, on a raid of Rimuru's city. However, Phobio is quickly defeated when Milim meets his attack with her own. Rimuru and his subordinates then ask Phobio why he has come to their town.

(Dub) Evil Creeps Closer

23min - Phobio can't restrain his anger toward Milim. He finds himself faced with Footman and Tear, two masked members of the Moderate Harlequin Alliance, who suggest that he become a Demon Lord to take revenge on Milim.

(Dub) Charybdis

23min - Rimuru and his forces attempt to destroy Charybdis with a full on attack, but fail, so Rimuru decides to take on Charybdis alone and learns the shocking truth!

(Dub) Yuuki Kagurazaka

23min - Rimuru has a dream in which he sees Shizu teaching children at her school in the Kingdom of Ingrassia, showing Shizu's lingering regret. To see her wishes through, Rimuru leaves the Jura Tempest Federation and heads for the capital of Ingrassia.

(Dub) Shizu-san's Students

23min - Rimuru becomes the new teacher for Shizu's students. However, having been summoned into this world against their will and facing shortened lifespans as a result, the children's feelings are complicated, and they're reluctant to accept Rimuru.

(Dub) Conquering the Labyrinth

23min - Rimuru, Ranga, and the students enter the Dwelling of Spirits and are immediately met by a giant metal golem. Rimuru easily defeats it and one of the ten Demon Lords introduces herself. Can this tiny spirit really be one of the ten Demon Lords?!

(Dub) Saved Souls

23min - Rimuru is successful in his attempt to calm the dangerous spirits dwelling within the children, and is confident that all of their problems have been solved.

(Dub) Black and the Mask

23min - After a dying woman summons a demon to avenge her, chaos ensues.

Tales: Veldora's Diary

24min - Ifrit, who was absorbed by Rimuru realises, he is in front of the storm dragon Veldora. Veldora leads Ifrit to the place he dwells and makes him his talking partner. From here, Veldora and Ifrit watch over Rimuru’s actions. This is a look back at the main events from the perspective of Veldora and Ifrit.

OVA 2: The Tragedy of M?

OVA 1: Hey! Butts!

OVA 3: Rimuru's Glamorous Life as a Teacher, Part 1

OVA 4: Rimuru's Glamorous Life as a Teacher, Part 2

OVA 5: Rimuru's Glamorous Life as a Teacher, Part 3