That Time I Got Reincarnated as a Slime OAD

Volluble Essential

転生したらスライムだった件 OVA

Anime2019Finished

Overview

This five-episode OVA collection from 2019 works as a companion piece to the main That Time I Got Reincarnated as a Slime anime rather than a continuation of its central story. Its significance lies in what it does with the large supporting cast: freed from the demands of an ongoing arc, characters who usually orbit the protagonist get to carry whole episodes themselves. The result is a useful demonstration of the series' comic range and of how well its ensemble holds up when the stakes are deliberately small.

The viewing experience is episodic and self-contained. Storylines revolve around lighthearted diversions, including a sumo-style tournament staged for the community's amusement and quieter domestic gags built on character dynamics. Comedy and character interaction drive each instalment, while action, fantasy worldbuilding and mild fan service appear in supporting doses. Because episodes run roughly twenty-four minutes and reset rather than build toward a climax, the collection is easy to sample in any order.

Viewers already familiar with the main series and its cast will get the most from these episodes, since much of the humour depends on knowing who these characters are and how they relate. Newcomers can still follow individual episodes but will miss many of the running jokes. The content level is mild, an English dub is available, and the episodes can be streamed, which makes this a low-pressure choice for fans who want more time with the cast without committing to a full season.

Synopsis

This original animation disc release is a five episode side collection tied to That Time I Got Reincarnated as a Slime, centered on Rimuru Tempest, a former salaryman reborn in a fantasy world as a powerful slime who now leads the monster nation of Tempest. Rather than advancing the main storyline, the episodes work as episodic vignettes that spend time with the large cast during quieter stretches of daily life in the capital.

The first of these stories begins when Rimuru notices that Tempest offers its residents no real outlets for recreation. He proposes sumo wrestling as an activity everyone can enjoy together, and the suggestion is taken up with enthusiasm. What follows is a tournament in which a wide range of characters compete for the grand prize, with bouts involving Benimaru and the other men as well as Shuna, Shion and other women, and Rimuru himself eventually stepping into the ring.

Later episodes follow a similar pattern of small scale domestic comedy. In one, Shuna and Shion squabble over Rimuru's soft slime body as usual, prompting him to consider a way of settling the dispute, and his imagination quickly runs through how other friends might make comparable requests. Across the collection the humor leans on the ensemble of monsters and allies who share Rimuru's everyday life.

Should You Watch It?

Watch it if you enjoy

  • You already know the main TenSura anime and want more time with Tempest's large supporting cast.
  • You enjoy episodic, low-stakes comedy set in daily life rather than a plot-heavy continuation.
  • You want a sampler of the series' comic range, including a sumo-style tournament and domestic gags.
  • You appreciate optional side stories that can be watched between main seasons without disrupting the central narrative.

It may not suit you if

  • You are looking for a major story arc or progression of the main TenSura plot; this OVA is side content.
  • You dislike episodic vignettes that reset each episode and lack a building climax.
  • You prefer minimal fan service; mild fan service and nudity tags appear in supporting doses.
  • You are new to the franchise; much of the humor depends on knowing who these characters are.
Volluble Test Drive Try 1 episode About 24 minutes

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Why It Connects With Audiences

Why people love it

  • The OVA lets supporting characters carry whole episodes, showing how well Tempest's ensemble works at deliberately small stakes.
  • Its comedy and character interaction drive each instalment, with action, fantasy worldbuilding, and mild fan service in support.
  • The sumo tournament premise gives a wide range of characters playful, low-stakes competitive moments.
  • Episodes run about 24 minutes and are easy to sample in any order, making it a relaxed companion piece.

Common criticisms

  • Because it is episodic and self-contained, it may feel inessential to viewers seeking main-story continuity.
  • Humor often relies on familiarity with the cast, so newcomers may find less to enjoy.
  • Stakes are deliberately small, and episodes reset rather than build toward a climax.
  • Fan service and nudity tags may distract from the lighthearted comedy for some viewers.

Volluble DNA

A quick profile of the title’s dominant storytelling ingredients.

Action
55
Comedy
85
Emotion
30
Mystery
5
Romance
10
Horror
0
Philosophy
15
Anime/Manga Convention Intensity
80
Characters and Voice Actors25 characters

Rimuru Tempest

Main character
  • Japanese: Miho Okasaki
  • English: Brittney Karbowski

Shion

Main character
  • Japanese: Mao Ichimichi
  • English: Michelle Rojas

Benimaru

Main character
  • Japanese: Makoto Furukawa
  • English: Ricco Fajardo

Shuna

Main character
  • Japanese: Sayaka Senbongi
  • English: Tia Ballard

Daikenja

Main character
  • Japanese: Megumi Toyoguchi
  • English: Mallorie Rodak

Ranga

Supporting character
  • Japanese: Chikahiro Kobayashi
  • English: Tyson Rinehart

Milim Nava

Supporting character
  • Japanese: Rina Hidaka
  • English: Kristen McGuire

Souei

Supporting character
  • Japanese: Takuya Eguchi
  • English: Ian Sinclair

Rigurd

Supporting character
  • Japanese: Kanehira Yamamoto
  • English: Kent Williams

Gobta

Supporting character
  • Japanese: Asuna Tomari
  • English: Ryan Reynolds

Diablo

Supporting character
  • Japanese: Takahiro Sakurai
  • English: Daman Mills

Gabiru

Supporting character
  • Japanese: Jun Fukushima
  • English: Austin Tindle

Hakurou

Supporting character
  • Japanese: Houchuu Ootsuka
  • English: Charles Campbell

Souka

Supporting character
  • Japanese: Rumi Ookubo
  • English: Caitlin Glass

Alice Rondo

Supporting character
  • Japanese: Haruka Shiraishi
  • English: Sarah Wiedenheft

Kenya Misaki

Supporting character
  • Japanese: Ayaka Asai
  • English: Brittany Lauda

Ryouta Sekiguchi

Supporting character
  • Japanese: Shizuka Ishigami
  • English: Apphia Yu

Gale Gibson

Supporting character
  • Japanese: Gen Satou
  • English: Justin Briner

Chloe Aubert

Supporting character
  • Japanese: Azusa Tadokoro
  • English: Emily Neves

Haruna

Supporting character
  • Japanese: Juri Kimura
  • English: Megan Shipman

Tiss

Supporting character
  • Japanese: Mikako Komatsu
  • English: Erica Mendez

Jeff

Supporting character
  • Japanese: Hiroyuki Kinoshita
  • English: David Vincent

Rigur

Supporting character

Myrd

Supporting character

Kaijin

Supporting character
Production and Staff12 credits
Animation Studio8-bit
Original StoryFuse
Original StoryTaiki Kawakami
Original Character DesignMitz Vah
MusicElements Garden
Theme Song Performance (ED2)Azusa Tadokoro
Theme Song Performance (ED1)Miho Karasawa
Theme Song Performance (OP1, OP2)Takuma Terashima
Key Animation (ED)Shuu Sugita
Key Animation (ED)coge
ADR Director (Brazilian Portuguese)Bruna Nogueira
ADR Director (Latin American Spanish)Roberto Gutiérrez

Production Background

That Time I Got Reincarnated as a Slime OAD is a five-episode anime OVA released in 2019, with each episode running about 24 minutes and a finished release status. It follows the 2018 debut of the TenSura television anime and sits alongside that series within the larger franchise, which has also produced multiple OVAs and theatrical films. The OAD carries a manga source-material credit and is cataloged as an individual anime entry rather than as part of the main television run.

The parent television series is adapted from Fuse's light novel series and produced by Eight Bit, the production context in which this OAD's anime line was established. The OAD's own episode lineup is episodic in structure and built around the ensemble cast of Tempest, with tags covering Isekai, Reincarnation, Magic, Sumo, Shounen, Monster Girl, and Female Harem. Its genre profile mixes action, adventure, comedy, and fantasy.

An English dub was produced for the OAD, and the work has been distributed through the Crunchyroll, iQ, and YouTube streaming services. Its content level is classified as mild, and the five episodes are the complete run of this specific OVA release.

Where This Fits in That Time I Got Reincarnated as a Slime

A spoiler-light guide to where this exact work fits within the broader That Time I Got Reincarnated as a Slime franchise.

  1. Step 1
    Begin with the main television anime's first season so you already know Tempest, Rimuru, and the supporting cast this side story plays with.
  2. Step 2
    Slot this five-episode OVA batch in after that first season, when its relaxed daily-life tone fits without interrupting the main storyline.
  3. Step 3
    Treat the episodes as optional, stand-alone comedy vignettes; they are alternate side content rather than a required link in the central plot, so they can also be saved for later.
  4. Step 4
    Afterward, continue with the subsequent television seasons and theatrical films in their release order to follow the main narrative forward.

Franchise Path

  1. Start with the main TenSura TV anime's first season to know Rimuru, Tempest, and the ensemble this OAD plays with.
  2. Then watch this five-episode OAD as optional side content; it sits after Season 1 without advancing the central plot.
  3. Afterward, follow the franchise forward through later TenSura TV seasons and theatrical films in release order.

After You Finish

Continue with

  • This OAD is a complete five-episode side collection, so it has no direct sequel of its own.
  • Continue with the main TenSura TV timeline—later seasons and films in release order—to follow the central story.
  • For more Tempest side comedy, move to TenSura: The Slime Diaries, the franchise's daily-life spin-off.

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Sources3 sources
  1. www.ten-sura.com
  2. AniList - That Time I Got Reincarnated as a Slime OAD
  3. Wikipedia: That Time I Got Reincarnated as a Slime (TV series)

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