That Time I Got Reincarnated as a Slime (Japanese: 転生したらスライムだった件, Hepburn: Tensei Shitara Suraimu Datta Ken), also known as Regarding Reincarnated to Slime[b] and by the contraction TenSura (転スラ), is a Japanese fantasy light novel series written by Fuse [ja], and illustrated by Mitz Vah.
The story follows Satoru Mikami, a salaryman who is murdered and then reincarnated in a sword and sorcery world as the titular slime, who goes on to gather allies to build their own nation of monsters.
The disappearance of Veldora's aura creates a power vacuum which eventually makes Rimuru the leader of all beings inhabiting the Great Forest of Jura, who accept them as a ruler and together they found the nation of Tempest.
Soon Rimuru and their subjects draw the attention of nearby foreign powers, from monarchs and legendary heroes to demon lords, some seeking to become their allies, others intending to take advantage of or destroy them completely.
Fuse originally serialized the series as a web novel on the user-generated content site Shōsetsuka ni Narō between February 20, 2013, and January 1, 2016.
[7][9] On April 15, 2017, English publisher Yen Press announced during their panel at Sakura-Con that they had licensed the series for release in North America.
[13] A spin-off 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～, Tensei Shitara Suraimu Datta Ken: Mamono no Arukikata), with art by Shō Okagiri, was serialized in Micro Magazine's Comic Ride web magazine between July 28, 2016 and March 1, 2021.
[16] A second 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, Tensura Nikki: Tensei Shitara Suraimu Datta Ken), with art by Shiba, has been serialized in Kodansha's shōnen manga magazine Monthly Shōnen Sirius since March 2018, compiled into seven volumes as of January 2024, and licensed in English by Kodansha USA.
as a Workaholic Slime (転生しても社畜だった件, Tensei Shitara Shachiku Datta Ken) and illustrated by Shizuku Akechi began serialization in Kodansha's Niconico-based Suiyōbi no Sirius manga web platform on September 26, 2018, and has been compiled into two volumes as of March 27, 2020.
[19] A fourth spin-off manga, titled Tensei Shitara Slime datta Ken Ibun - Makoku Gurashi no Trinity (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～), with art by Tae Tono began serialization in Suiyōbi no Sirius on March 14, 2019.
[20] On March 18, 2020, Kodansha USA announced their license to the manga for a print release under the title That Time I Got Reincarnated as a Slime: Trinity in Tempest.
Tensei Shitara Slime Datta Ken (転ちゅら！ 転生したらスライムだった件), with art by Chacha, began serialization in Monthly Shōnen Sirius on February 26, 2019.
[23] A seventh spin-off manga, titled That Time I Got Reincarnated as a Slime: Gourmet Legend: Peko and Rimuru's Cooking Notebook, with art by Chika Nakatani will begin serialization in Monthly Shōnen Sirius on April 26, 2023.
[24] A manga adaptation of the Toaru Kyūka no Sigoshi-kata web novel illustrated by Yuzo Takada began serialization in Monthly Shōnen Sirius on July 26, 2023.
[36] Three more original animation DVDs have been announced, with the third OAD being released on March 27, 2020, bundled with the 14th manga volume.
[44] Following the airing of the second season's final episode, it was announced that the series will receive an anime film, titled That Time I Got Reincarnated as a Slime: The Movie – Scarlet Bond.
[47] A three-episode original net animation (ONA) series, titled Visions of Coleus, was announced on February 19, 2023, and premiered on November 1, 2023.
[48][49] A third season was announced on November 9, 2022,[50] and aired from April 5 to September 27, 2024, on the Friday Anime Night programming block on Nippon TV and its affiliates, as well as BS11.
At the AnimeJapan 2021 special stage for the franchise, a free-to-play role-playing game app, titled Tensei Shitara Slime Datta Ken: Maō to Ryū no Kenkoku-tan (That Time I Got Reincarnated as a Slime: The Saga of How the Demon Lord and Dragon Founded a Nation), was announced.
[57][58][59] The mobile game The Seven Deadly Sins: Grand Cross had a crossover event where some of the characters of the series could be obtained for a limited time.
[60] A similar event occurred in the Japanese version of the mobile game Yo-kai Watch: Wibble Wobble.