The first season of the Jujutsu Kaisen anime television series is based on the manga series Jujutsu Kaisen by Gege Akutami. An animated adaptation of the manga was announced in the 52nd issue of Weekly Shà Ânen Jump, which was published in November 2019. The story focuses on high school student Yuji Itadori as he joins a secret organization of Jujutsu Sorcerers in order to kill a powerful Curse named Ryomen Sukuna, to whom Yuji becomes the host.
The season was produced by MAPPA and directed by Sunghoo Park. Hiroshi Seko wrote the scripts, Tadashi Hiramatsu designed the characters, and Hiroaki Tsutsumi, Yoshimasa Terui, and Alisa Okehazama composed the music. While the anime had an advanced streaming debut on September 19, 2020, it officially aired on MBS and TBS's Super Animeism programming block from October 3, 2020, to March 27, 2021. The season ran for 24 episodes. From episode 3 onwards the season includes post-credits anime shorts titled , which focus on the daily lives of the main characters. A Japanese home media collection was released, with its first volume debuting on January 20, 2021.
The anime is licensed by Crunchyroll for streaming outside of Asia. The streaming service has released dubs for the series in English, Spanish, Portuguese, French, and German, in addition to a Russian voice-over that premiered on November 20, 2020. In Southeast Asia, Medialink licensed the series and streamed it on iQIYI.
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For the first 13 episodes, the opening theme song is , performed by Eve, while the ending theme song is "Lost in Paradise", performed by ALI featuring Aklo. For the remainder of the season, the opening theme song is "Vivid Vice", performed by Who-ya Extended, while the ending theme song is "", performed by Cö shu Nie.
The music for the series was composed by Hiroaki Tsutsumi, Yoshimasa Terui, and Alisa Okehazama. The soundtrack was released by Toho Animation on April 21, 2021.