Many fans might occasionally wonder about the exciting prospect of popular characters from one beloved anime universe crossing over into another. Given his wild, untamed spirit and iconic boar's head, the idea of Inosuke Hashibira making an appearance in a vibrant fantasy world like That Time I Got Reincarnated as a Slime (TenSura) is certainly imaginative!
However, it's important to clarify right from the start: Inosuke Hashibira is a cherished and incredibly popular character from the Demon Slayer: Kimetsu no Yaiba series. He is not a part of the That Time I Got Reincarnated as a Slime universe. While both are fantastic anime, their narratives, characters, and settings are entirely distinct.
If you arrived here looking for information on Inosuke, we encourage you to explore content related to Demon Slayer. But if your curiosity was sparked by the captivating title and you're now ready to delve into the rich, expansive world of That Time I Got Reincarnated as a Slime, you've come to the right place! This Super Pillar Hub is your ultimate gateway to understanding everything about TenSura, from its humble beginnings to its latest anime seasons and beyond.
Unpacking the Phenomenon of TenSura: An Origin Story
That Time I Got Reincarnated as a Slime, often shortened to TenSura, is far more than just another fantasy tale. It's a global phenomenon that began its life as a web novel, captivating readers with its unique premise and engaging world-building. What started online between 2013 and 2016 quickly gained traction, leading to its acquisition for publication as a light novel series, with its first volume hitting shelves in 2014. From there, it exploded into multiple manga adaptations and a hugely successful anime television series.
The series, also known as Tensei Shitara Suraimu Datta Ken or Regarding Reincarnated to Slime, has grown exponentially. The original web novel was serialized on the Shōsetsuka ni Narō platform, and its print counterpart, the light novel, has reached 21 volumes as of October 2023. For those eager to [explore the differences between the original web novel and the published light novel series][placeholder_link slug="that-time-i-got-reincarnated-as-a-slime-web-novel-vs-light-novel"], we have a dedicated guide that breaks down all the key distinctions. Yen Press proudly licenses the light novels in North America, with the first volume released in December 2017.
Meeting Rimuru Tempest: The Slime at the Heart of It All
At its core, That Time I Got Reincarnated as a Slime introduces us to an ordinary 37-year-old Japanese office worker named Satoru Mikami. His mundane life takes an extraordinary turn when he tragically dies after being stabbed by a robber. Instead of fading away, he's reincarnated in a fantastical new world, not as a hero or a prince, but as a seemingly humble slime monster. It's an unlikely beginning for an epic journey, and you can [discover the origins of Rimuru's past self][placeholder_link slug="who-is-satoru-mikami-in-that-time-i-got-reincarnated-as-a-slime"] to understand the man behind the slime.
Upon reincarnation, Satoru is given a new identity: Rimuru Tempest. This new existence comes with an incredible, game-changing ability: to absorb anything and gain its appearance and abilities. This power allows him to evolve rapidly, befriending the mighty Storm Dragon Veldora and eventually embarking on the ambitious quest to build a nation where all monsters can coexist happily. To [learn all about the series' extraordinary protagonist][placeholder_link slug="that-time-i-got-reincarnated-as-a-slime-main-character-explained"], including his unique traits and evolution, check out our in-depth character profile.
The Ever-Evolving Powers of a Slime
Rimuru Tempest is no ordinary slime. From his initial ability to absorb and mimic to his eventual mastery of complex skills and transformations, his power set is constantly expanding. He becomes a "named monster" after exchanging names with Veldora and later acquires a human form by absorbing Shizu. Despite his often feminine appearance, he is biologically asexual, a unique trait that highlights the series' imaginative approach to fantasy races. His personality is generally cheerful and pacifist, yet he can be utterly ruthless when those he cares for are threatened. If you're curious to [explore the full spectrum of Rimuru's impressive powers][placeholder_link slug="what-are-rimuru-tempests-powers-and-abilities"], we have a detailed breakdown of his skills and transformations. You can also [delve into the fascinating hierarchy and abilities of Slimes in the anime world][placeholder_link slug="tenseishitara-suraimu-datta-ken-the-ultimate-guide-to-slimes-in-anime"] to understand where Rimuru stands in the broader context of these versatile creatures.
Building a Nation: The Jura Tempest Federation
Rimuru's ultimate goal is to establish the Jura Tempest Federation, a utopian nation where all races—monsters, humans, and everything in between—can live together in peace and prosperity. This ambition drives much of the series' overarching narrative, leading to political intrigue, diplomatic challenges, and epic battles. The growth of Tempest from a small gathering of goblins and direwolves to a formidable, recognized state is one of the most compelling aspects of the story. To [gain a deeper understanding of the Jura Tempest Federation's vision and growth][placeholder_link slug="understanding-the-jura-tempest-federation-in-that-time-i-got-reincarnated-as-a-slime"], explore its history, key figures, and political standing.
The journey to achieve this dream is filled with memorable encounters and significant developments. For a broad understanding of Rimuru's entire saga, you can [get a comprehensive overview of the major story arcs that define Rimuru's journey][placeholder_link slug="what-are-the-major-story-arcs-in-that-time-i-got-reincarnated-as-a-slime"].
The Anime Adaptation: A Visual Feast
The captivating world of TenSura truly comes alive through its anime adaptation by studio Eight Bit. The first season aired from October 2018 to March 2019, spanning 24 episodes and introducing viewers to Rimuru's genesis and the founding of Tempest. This was followed by five original animation DVDs (OADs). The second season premiered in two parts from January to September 2021, deepening the political landscape and raising the stakes significantly.
Fans were delighted with a spin-off anime based on the manga The Slime Diaries, which aired from April to June 2021, offering a lighter, slice-of-life look at Tempest. A three-episode original net animation (ONA) titled Visions of Coleus, set between the first and second seasons, was released in November 2023, further enriching the lore.
The Latest Adventures: Season 3 and Beyond
The excitement continued with the third season, which aired from April to September 2024. This season picked up right after the dramatic events of Clayman's defeat, propelling Rimuru and his nation into new diplomatic and martial challenges. To [find out how many seasons have graced our screens and what to expect next][placeholder_link slug="how-many-seasons-of-that-time-i-got-reincarnated-as-a-slime-are-there"], our guide covers the full scope of the anime's run.
Summary of Season 3 Plot:
After Clayman's defeat, Rimuru returns to Tempest, entrusting Diablo with managing affairs in the Falmuth Kingdom. Meanwhile, Hinata Sakaguchi of the Western Holy Church grows suspicious of Veldora's awakening, receiving a warning from Luminous Valentine not to attack Rimuru. A manipulated message provokes a duel between Hinata and Rimuru, which is interrupted by the revelation of manipulation by the Seven Luminaries and the Rozzo family. Luminous Valentine intervenes, healing Hinata and executing the corrupt Luminaries, leading to a significant alliance between Tempest, the Western Holy Church, and Luminous.
Rimuru then hosts a grand festival to celebrate his nation's success, attracting dignitaries like King Dwargo, Emperor Elmesia, and Hero Masayuki. During the festivities, Rimuru thwarts a financial scheme by the Rozzo family, opens an underground labyrinth as an attraction, and holds a martial arts tournament won by Gobta. Masayuki, an Otherworlder like Rimuru, becomes his subordinate. The festival concludes with new alliances and trade relationships formed. A month later, Tempest receives a letter from the Council of the West, hinting at future developments. For a complete understanding, you can [dive into a full breakdown of the exciting events of Season 3][placeholder_link slug="that-time-i-got-reincarnated-as-a-slime-season-3-plot-summary-explained"].
Expanding the Universe: The Movie and Supporting Cast
Beyond the main series, the TenSura universe has also expanded to the big screen. That Time I Got Reincarnated as a Slime: The Movie – Scarlet Bond premiered in Japan in November 2022 and internationally in January 2023. This cinematic adventure is set after the events of the anime's second season and grossed over US$13 million worldwide, showcasing the series' immense popularity. To [learn more about the epic cinematic adventure][placeholder_link slug="all-about-the-that-time-i-got-reincarnated-as-a-slime-movie-scarlet-bond"], check out our dedicated movie guide.
Of course, Rimuru's journey wouldn't be complete without the incredible cast of characters who surround him. From powerful allies like Veldora, Benimaru, and Shion to complex adversaries like Hinata Sakaguchi and the various factions vying for power, each character adds depth and excitement to the narrative. To [meet the diverse cast of allies and adversaries who shape the world of TenSura][placeholder_link slug="important-characters-in-that-time-i-got-reincarnated-as-a-slime-beyond-rimuru"], our character profiles introduce you to the key players in this sprawling fantasy.
The Journey Continues
While Inosuke Hashibira may not be part of this particular adventure, the world of That Time I Got Reincarnated as a Slime offers an incredibly rich and engaging narrative for any fantasy fan. With new seasons and a second film already announced, Rimuru Tempest's journey is far from over. There's always more to discover, more characters to love, and more strategic decisions to unravel as the Jura Tempest Federation continues its path toward ultimate harmony. Dive in and explore the full breadth of this extraordinary world!