That Time I Got Reincarnated as a Slime Manga: The Complete Guide

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The That Time I Got Reincarnated as a Slime manga is an ongoing isekai series illustrated by Taiki Kawakami and based on the light novels by Fuse, with original character designs by Mitz Vah. It launched in Kodansha’s Monthly Shonen Sirius in March 2015 and is still running, following salaryman-turned-slime Rimuru Tempest as he builds a monster nation. With well over 100 chapters and 27-plus collected volumes, it remains one of the most popular isekai manga in publication, sitting alongside a hit anime and a sprawling franchise.

Below you’ll find who makes the manga, whether it’s finished, how it compares to the anime and light novels, the spin-offs worth knowing, and where to read it in English.

Table of Contents

What Is the That Time I Got Reincarnated as a Slime Manga?

The That Time I Got Reincarnated as a Slime manga is a comic adaptation of Fuse’s isekai light novels, illustrated by Taiki Kawakami and serialized in Kodansha’s Monthly Shonen Sirius since 2015. It follows Satoru Mikami, who dies and is reincarnated as a slime named Rimuru Tempest in a fantasy world, then unites monsters into a thriving nation.

The original Japanese title is Tensei Shitara Slime Datta Ken, often shortened by fans to “Tensura.” The story blends nation-building, political intrigue, and overpowered-protagonist action: Rimuru gains the “Predator” skill that lets him absorb abilities, befriends the sealed dragon Veldora, and steadily transforms a goblin village into the Jura Tempest Federation. The manga has been a consistent bestseller for Kodansha and a major pillar of the broader franchise.

Who Writes and Draws the Manga?

The That Time I Got Reincarnated as a Slime manga is drawn by Taiki Kawakami, adapting the story written by Fuse, with the original character designs created by Mitz Vah for the light novels. This three-way credit is standard for light-novel adaptations: Fuse provides the source narrative, Mitz Vah established the cast’s visual identity, and Kawakami handles the actual manga art and paneling.

A few quick facts on the production:

  • Original story: Fuse (began as a web novel on Shōsetsuka ni Narō)
  • Manga art: Taiki Kawakami
  • Character designs: Mitz Vah
  • Magazine: Monthly Shonen Sirius (Kodansha)
  • Serialization start: March 2015

Fuse first published the tale as a free web novel before it was picked up for light-novel release by Micro Magazine, after which Kawakami’s manga adaptation followed. Because it’s a monthly title rather than a weekly one, chapters release at a steadier, slower cadence than Shonen Jump series.

Is the That Time I Got Reincarnated as a Slime Manga Finished?

No — the That Time I Got Reincarnated as a Slime manga is not finished. As an ongoing adaptation of Fuse’s still-continuing light-novel series, Kawakami’s manga is actively serialized in Monthly Shonen Sirius and continues to release new chapters. It has surpassed 100 chapters collected into roughly 27 or more tankōbon volumes.

Because it’s a monthly publication trailing the light novels, the manga lags behind the source material and is expected to run for years yet. The light novels themselves are still ongoing under Fuse, which means there’s plenty of story left for Kawakami to adapt. If you’re tracking the absolute latest plot developments, the light novels are furthest ahead, followed by the manga, then the anime.

Manga vs. Anime vs. Light Novel: What’s Different?

The franchise exists in three main forms, and each tells the same core story with different strengths. The light novels by Fuse are the canonical source and run furthest into the plot. The manga by Taiki Kawakami is a faithful, beautifully illustrated adaptation that often expands quieter scenes with extra art and detail. The anime, produced by studio Eight-Bit, brings color, voice, and motion but is the slowest to reach new arcs.

Key differences worth knowing:

  • Furthest in the story: Light novels lead; the manga follows; the anime trails.
  • Art and pacing: The manga gives more page space to character beats and worldbuilding than the anime’s episode runtime allows.
  • Extra material: The light novels include side stories and afterword commentary from Fuse that neither adaptation fully covers.
  • Tone: All three keep Rimuru’s signature warmth and humor, so no version feels off-brand.

For most readers, the manga is the sweet spot — more advanced than the anime, with art that does justice to Mitz Vah’s designs.

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If you want to read the latest That Time I Got Reincarnated as a Slime chapters in English, SnowMTL offers AI-powered manga translation at snowmtl.org, so you can follow Rimuru’s story without waiting on official volume releases.

Spin-Offs and Where to Read in English

Beyond the main series, the That Time I Got Reincarnated as a Slime manga franchise includes several spin-offs. The most popular is The Slime Diaries (Tensura Nikki), a lighthearted slice-of-life series about everyday peace in Tempest, which also received its own anime. There’s also The Ways of the Monster Nation (Mamono no Kuni no Arukikata), focusing on side characters, plus Clayman REVENGE, Trinity in Tempest, and other entries that flesh out the world.

The main manga is officially published in English by Kodansha USA, available in print and digital tankōbon volumes through major retailers and digital storefronts. For chapters that haven’t yet reached an official English volume, fan-translation and AI-translation platforms help readers stay current. The light novels are also available in English via Yen Press, making it easy to jump ahead of both the manga and the anime if you can’t wait.

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Frequently Asked Questions About the That Time I Got Reincarnated as a Slime Manga

Who draws the That Time I Got Reincarnated as a Slime manga? The manga is illustrated by Taiki Kawakami, adapting the original story by Fuse with character designs by Mitz Vah. It is serialized in Kodansha’s Monthly Shonen Sirius and has been running since March 2015.

Is the That Time I Got Reincarnated as a Slime manga finished? No. The manga is still ongoing and continues to release new chapters in Monthly Shonen Sirius. It adapts Fuse’s light novels, which are also still in publication, so there is plenty of story left to tell.

How many chapters and volumes does the manga have? The manga has surpassed 100 chapters collected into roughly 27 or more tankōbon volumes. Because it is a monthly title, new chapters arrive at a steadier pace than weekly Shonen Jump series.

Is the manga based on a light novel or an anime? The manga is based on the light novels by Fuse, which themselves began as a web novel on Shōsetsuka ni Narō. The anime by studio Eight-Bit came later and adapts the same source material independently.

Where can I read the That Time I Got Reincarnated as a Slime manga in English? The main manga is officially published in English by Kodansha USA in print and digital volumes. For the newest chapters not yet in official volumes, AI-powered translation platforms like SnowMTL let English readers keep up with ongoing releases.

Conclusion

In short, the That Time I Got Reincarnated as a Slime manga is an ongoing, fan-favorite isekai by artist Taiki Kawakami, based on Fuse’s light novels with Mitz Vah’s character designs, and published by Kodansha since 2015. It’s well past 100 chapters, still running, and backed by a deep roster of spin-offs and an Eight-Bit anime. If you’re exploring more overpowered-protagonist stories, see our guide on the best isekai anime with an OP main character. Bookmark this page — we update it as new volumes and franchise news drop.

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