That Time I Got Reincarnated as a Slime – Season 2 (2021)

Rimuru’s Rise to Demon Lord Begins

The second season of That Time I Got Reincarnated as a Slime elevates the stakes as Rimuru Tempest transforms from a peaceful leader into a Demon Lord, facing devastating losses, fierce enemies, and world-altering decisions.

That Time I Got Reincarnated as a Slime – Season 2 Overview

• Title: That Time I Got Reincarnated as a Slime – Season 2

• Episodes: 24 (Split Cour: 12 + 12)

• Air Dates:

  • Part 1: January 12 – March 30, 2021

  • Part 2: July 6 – September 21, 2021

• Studio: 8bit

• Streaming Platforms: Crunchyroll, Netflix, Muse Asia (YouTube – region locked)

• Opening Theme (Part 1): "Storyteller" by TRUE

• Opening Theme (Part 2): "Like Flames" by MindaRyn

• Ending Themes: "STORYSEEKER" / "Reincarnate" by Takuma Terashima

Story Summary

After establishing the Jura Tempest Federation, Rimuru faces unexpected hostility from powerful nations and religious factions. When a catastrophic invasion by the Kingdom of Falmuth results in the massacre of his people, Rimuru is forced to evolve—both in power and resolve.

This season chronicles his emotional journey, climaxing in his ascension to Demon Lord status. With new allies and divine strength, Rimuru confronts Clayman, a cunning Demon Lord pulling strings behind the scenes.

Major Arcs Covered

1. Falmuth Invasion Arc

• Falmuth attacks Tempest under false pretenses, resulting in casualties that force Rimuru to change forever.

2. Demon Lord Awakening Arc

• Rimuru undergoes a ritual to become a Demon Lord, unleashing devastating power and reviving his people.

3. Walpurgis Banquet / Clayman War Arc

• Political clashes and epic battles unfold as Demon Lords convene. Rimuru’s final showdown with Clayman cements his place among the elite.

Key Themes

• Sacrifice & Responsibility – Rimuru must face loss and make hard decisions.

• Power & Corruption – The Demon Lords represent power with various moral shades.

• Rebirth of Justice – Slime isn't just about peace anymore—it's about vengeance, balance, and nation-building.

Main Characters – Season 2

• Rimuru Tempest – Now a Demon Lord, wielding vast new abilities.

• Shion – Rimuru’s trusted secretary, whose fate sparks transformation.

• Diablo – A mysterious and immensely powerful demon who pledges loyalty.

• Benimaru, Shuna, and Ranga – Rimuru’s ever-loyal companions.

• Clayman – A manipulative Demon Lord and the primary antagonist.

Where to Watch That Time I Got Reincarnated as a Slime – Season 1

You can watch That Time I Got Reincarnated as a Slime – Season 1 on:

• Crunchyroll

• Muse Asia (Selected regions only)

• Netflix 

Final Thoughts

Season 2 offers deeper emotional stakes, darker political games, and high-powered transformations. Rimuru’s shift from a peaceful leader to a commanding Demon Lord redefines the series, blending tragedy, epic battles, and mature fantasy politics. It’s a must-watch for fans of smart world-building and character evolution.