Have you ever wondered what it would be like to start over in a magical world, but as the weakest creature imaginable?

And what if your next life began not as a hero, but as a slime? 

Step into the vibrant world of That Time I Got Reincarnated as a Slime with Rakufun! Let Rakufun be your guide, bringing the magic of Tempest right to your doorstep. 

This is the captivating premise of That Time I Got Reincarnated as a Slime (Tensei Shitara Slime Datta Ken), a Japanese fantasy series that has taken the anime world by storm. What began as a web novel has blossomed into a multimedia empire, captivating millions with its unique blend of fantasy, strategy, and heart.

Originally penned by author Fuse in 2013, the story’s online success was phenomenal, amassing over 140 million views. Its popularity led to a published light novel, a manga adaptation, and eventually, a critically acclaimed anime series produced by 8bit that premiered in October 2018. It follows the extraordinary journey of Satoru Mikami, a regular 37-year-old office worker, whose ordinary life ends abruptly, only to restart in a fantastical realm not as a hero, but as a humble, blue Slime named Rimuru Tempest.

An Unlikely Hero’s Journey

The story kicks off with Satoru, a mundane salaryman, meeting an untimely end. Upon reincarnation, he finds himself in a cave, blind and deaf, slowly realizing he has become a Slime. His new form, however, comes with two incredible unique skills: ‘Great Sage’, a powerful analytical and advisory ability, and ‘Predator’, which allows him to consume and analyze anything. His fate changes forever when he befriends the cataclysmic “Storm Dragon” Veldora, who is sealed in that very cave. Naming the Slime “Rimuru,” Veldora forms a pact with him, setting Rimuru free to explore this vast new world.

Unlike typical power fantasies, Rimuru’s goal isn’t initially conquest. Armed with his human memories and a pragmatic, peace-loving personality, his first desire is simply to live comfortably. However, his kindness and power inevitably draw others to him. The narrative beautifully unfolds as he stumbles upon conflicts, like one between Goblins and the Direwolves, and uses his wits and abilities to forge peaceful solutions. Step by step, he gathers a community, starting with a tribe of Goblins, and begins building a place where all races can coexist.

Building a Nation: The Jura Tempest Federation

The first major arc of the anime focuses on nation-building. Rimuru’s journey transitions from solitary adventure to leadership as he establishes the Jura Tempest Federation in the Great Forest of Jura. This phase is both fascinating and heartwarming, as viewers watch him apply knowledge from his past world to solve problems related to food, housing, security, and governance. He forges alliances with diverse species including the Ogres, Lizardmen, and Orcs, granting them power through naming and integrating them into a growing society.

A key turning point is his encounter with the powerful and playful Milim Nava, one of the ancient Demon Lords, whom he cleverly befriends. This alliance secures his nation’s safety and highlights Rimuru’s unique diplomatic skill—solving crises not just with strength, but with empathy and intelligence.

The Path of a Demon Lord

The story takes a darker, more emotional turn in its second season. As the Jura Tempest Federation thrives and begins trading with human nations, the deep-seated prejudice of the human world surfaces. A devastating attack led by the kingdom of Falmuth results in tragedy, including the death of Rimuru’s close subordinate, Shion.

This loss shatters Rimuru’s ideal of peaceful coexistence and forces his hand. To resurrect his fallen comrades and protect his people from future threats, he makes a monumental decision: to ascend as a True Demon Lord. This transformation marks a significant evolution in the series, as Rimuru embraces greater power and responsibility to shield his found family, solidifying his nation’s place in a hostile world.

The Saga Continues:

New Challenges and Alliances

The saga continues into its third season, where Rimuru, now officially a Demon Lord, faces the consequences of his new status. After defeating the manipulative Demon Lord Clayman at the Walpurgis banquet, his influence expands. He plans an “Founding Festival” to formally introduce his nation to the world. However, peace is fragile. A manipulated declaration of war reaches the Holy Empire of Lubelius, setting its formidable leader, Hinata Sakaguchi, on a collision course with Tempest. This conflict forces Rimuru to navigate complex politics, discern true allies from enemies, and steadfastly pursue his dream of a “Harmonious World” for monsters and humans alike.

Why It Stands Out:

More Than Just Another Isekai

That Time I Got Reincarnated as a Slime has captivated millions worldwide, and for good reason. Here’s what makes it special:

• A Refreshing Protagonist: Rimuru is a breath of fresh air. He’s kind, pragmatic, and values diplomacy and friendship over brute force. His journey is less about personal power for its own sake and more about using his strength to create a safe, prosperous home for everyone.

• The Perfect Balance: The series expertly mixes action, comedy, and political drama with genuine slice-of-life moments. One episode might feature a massive battle against an orc army, while the next focuses on establishing trade routes or inventing hot springs for the city. This balance keeps the story consistently engaging.

• A Vast and Expanding World: Beyond the hit TV series, the franchise includes a blockbuster movie, Scarlet Bond, which follows Rimuru on a new adventure to a kingdom plagued by a mysterious curse. The original light novels and manga also continue the story, offering even deeper dives into the lore and characters.

Bringing the World of Tempest into Your Home

The love for That Time I Got Reincarnated as a Slime extends far beyond the screen, spawning a vast and delightful array of official merchandise. For fans, these items are a way to celebrate the series and feel closer to their favorite characters. The quality and variety are impressive, ranging from elegant display pieces to fun daily accessories.

1. Impressive Figures and Statues
For collectors who want a centerpiece, there are stunning high-quality figures. These range from large, detailed statues of characters like Rimuru to popular “B-style” figures of fan-favorites like Milim in unique outfits.

2. Fun and Interactive Collectibles
The series also offers unique items that are more than just for display. A great example is the PROPLICA Rimuru Tempest, a soft, squeezable replica of Rimuru that plays over 100 sounds and voice lines from the anime. For a cute and poseable option, the Figuarts mini Rimuru Tempest is a popular Q-style figure.

3. Affordable Prize Figures
Brands like Banpresto make high-quality, affordable figures that are perfect for starting or expanding a collection. Their Otherworlder series features cool characters like the ninja Souei, allowing you to collect the whole Tempest crew without a huge cost.

4. Useful Lifestyle Goods
Show your love every day with official lifestyle items. You can find beautiful acrylic stands, practical acrylic keychains, stylish wall scrolls, and even unique items like Japanese-style table screens featuring art from the series.

5. The Thrill of Blind Boxes
Love surprises? Try collectible blind boxes like the Hyokokko Collection. These sets contain random mini-figures of Rimuru and other citizens of Tempest, making them fun to collect and trade.

6. Expanded Universe Manga:

The story continues in officially licensed spin-off manga, such as Trinity in Tempest, which follows new characters on adventures within the familiar world.

Dive into the Adventure: Official Games

The world of Tempest is also interactive! The action RPG “That Time I Got Reincarnated as a Slime: ISEKAI Chronicles” allows players to step into Rimuru’s shoes (or gelatinous body). The game lets you relive iconic story moments from meeting the Ogre survivors to the war with Falmuth, all with full voice acting. It also features original storylines supervised by the series’ creator, where you can build your nation, manage facilities, and face new threats.

For a more modern gaming experience, “That Time I Got Reincarnated as a Slime: The Tale of Tempest” was released in 2024 for consoles and PC. This game offers fast-paced combat, deep city-building mechanics, and new original stories, letting you forge your own path in the Slime universe.

Rakufun: Your Gateway to Official Merchandise

For international fans, acquiring authentic Japanese merchandise can sometimes be a challenge. This is where Rakufun shines as your dedicated Japanese proxy shopping service. Rakufun bridges the gap, giving you direct access to goods from Japanese online marketplaces, official brand stores, and limited-time releases that are often exclusive to the region.

How to Shop with Rakufun: A Simple Guide

Getting your favorite Slime goods is straightforward and user-friendly with Rakufun.