That Time I Got Reincarnated as a Slime

That Time I Got Reincarnated as a Slime (転生したらスライムだった件), abbreviated as TenSura (転スラ), is a light novel series written by Fuse and illustrated by Mitz Vah. It originally started as a web novel hosted on Shōsetsuka ni Narō between 2013-2016. The series was acquired by Micro Magazine, who published the first light novel volume in 2014. The series would later receive several manga adaptations and an anime television series adaptation by 8-Bit.

Plot
Lonely thirty-seven-year-old Satoru Mikami is stuck in a dead-end job, unhappy with his mundane life, but after dying at the hands of a robber, he awakens to a fresh start in a fantasy realm...as a slime monster! As he acclimates to his goopy new existence, his exploits with the other monsters set off a chain of events that will change his new world forever!

Light Novel
Fuse originally began the series as a web novel hosted on Shōsetsuka ni Narō between February 2013 and January 2016. The series was acquired for print publication by Micro Magazine, who published the first light novel, with illustrations by Mitz Vah, under their GC Novels imprint in May 2014. Yen Press licensed the light novels for English release, with the first volume released on December 19, 2017.

Manga
A manga adaptation was made by Taiki Kawakami and was published in Kodansha's Monthly Shōnen Sirius on March 26, 2015. Kodansha USA licensed the manga for an English release.

A second manga, titled That Time I Got Reincarnated as a Slime: The Ways of the Monster Nation (転生したらスライムだった件～魔物の国の歩き方～), with art by Shō Okagiri, has been serialized on Micro Magazine's Comic Ride website since July 28, 2016. Yen Press licensed the manga for an English Release.

A spin-off manga titled The Slime Diaries: That Time I Got Reincarnated as a Slime (転スラ日記 転生したらスライムだった件), often shortened to Reincarnated Slime Diary (転スラ日記), by Shiba began serializing on Shonen Sirius, with the first volume released on September 28, 2018. Kodansha USA licensed the manga for an English release.

A second spin-off manga titled That Time I Got Reincarnated (Again!) as a Workaholic Slime (転生しても社畜だった件) illustrated by Shizuku Akechi has been serialized in the Suiyōbi no Sirius web magazine since September 26, 2018, and it is also been serialized in print in Kodansha's Monthly Shōnen Sirius in since October 26, 2018. This spin-off manga was completed on March 27, 2020.

A third spin-off manga titled That Time I Got Reincarnated as a Slime: Trinity in Tempest (転生したらスライムだった件 異聞 ～魔国暮らしのトリニティ～) illustrated by Tae Tono has been published on the Suiyōbi no Sirius web magazine since March 26, 2019.

Anime
An anime adaptation was first announced on March 7, 2018. It was later announced that the series would run for two cours, and premiered on October 1, 2018. The series was simulcast by Crunchyroll, with a simuldub by Funimation that premiered on October 22, 2018. The first season ran for 24 episodes and 1 special episode. A second season was first announced on March 17, 2019. It was later announced that the second season will run for two split-cours, the first cour will premiere on January 12, 2021 and the second cour will premiere on July 2021. The second season will be simulcast by Crunchyroll, with a simuldub by Funimation that will premiere on Winter 2021. The second season's split-cours was initially slated to premiere on October 2020 and April 2020, respectively, but was delayed due to COVID-19.

An OAD was initially slated for release on March 29, 2019; bundled with the eleventh manga volume. However, this was delayed to December 4, 2019; bundled with the thirteenth manga volume due to "various circumstances." A second OAD was announced for July 9, 2019; bundled with the twelfth manga volume. Crunchyroll streamed the OADs worldwide outside of Asia. Funimation streamed simuldubs of the OADs on August 1, 2019, and January 22, 2020. A three-part OAD series, written by Fuse, was announced for March 27, 2020, July 9, 2020, and November 27, 2020; bundled with the fourteenth, fifteenth, and sixteenth manga volumes, respectively.

As of August 5, 2021, the anime has reportedly been watch for 1 billion times.

An anime adaptation of The Slime Diaries: That Time I Got Reincarnated as a Slime was first announced on March 22, 2020. It was later announced that the series will premiere in April 2021. It was initially slated to premiere in January 2021 but was delayed due to COVID-19. The series will be simulcast by Crunchyroll.

Lord of Tempest
That Time I Got Reincarnated as a Slime: Lord of Tempest (転生したらスライムだった件 ～魔国連邦創世記～) is a Japanese mobile game based on the series.

Characters from the series have also appeared in Seven Deadly Sins: Hikari to Yami no Grand Cross in a collaboration event.

Rimuru, Shizu, Shuna and Milim have appeared in SINoALICE in a collaboration event.

ISEKAI Memories
That Time I Got Reincarnated as a Slime: ISEKAI Memories (転生したらスライムだった件：魔王と竜の建国譚), also known as That Time I Got Reincarnated as a Slime: The Saga of How the Demon Lord and Dragon Founded a Nation, is an upcoming Japanese mobile game based on the series. It is a Nation Building 3D Battle RPG where players can build their own nation and recreate the anime's story as well as an original storyline supervised by Fuse.

Official Download: English Official Download: Japanese

Dragon Egg
A game collaboration with Dragon Egg (ドラゴンエッグ(ドラエグ)) was held from August 13, 2021 to August 27, 2021. Dragon Egg is a japanese collaborative battle RPG online game where you can explore the world with your dragon as a hunter and your partner, or you can join forces with others to form a team. You can obtain 4 limited monsters during this event through gacha (a Japanese roulette game). This includes the following: Rimuru, Shuna, Veldora and Milim. To obtain Diablo as a character, you would need to earn points, by defeating monsters and earning points, to exchange a ticket for him.

Transportation
That Time I Got Reincarnated as a Slime has collaborated with a few cities to promote Tensura by painting a few of Rimurus on the tram in certain parts of the city. This includes Toyama or Nagasaki. According to the Tensura website, this project is going to expand to various parts of the country.

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