Production and release
The anime adaptation was announced in June 2017. The television series is produced by Kinema Citrus and directed by Takao Abo, with Keigo Koyanagi handling series composition, Masahiro Suwa designing the characters, and Kevin Penkin composing the music. The series aired from January 9 to June 26, 2019, on AT-X and other channels. It ran for 25 episodes.
The first opening theme is "Rise", performed by Madkid, while the first ending theme is "Kimi no Namae" (きみの名前), performed by Chiai Fujikawa. The second opening theme is "Faith," performed by Madkid, while the second ending theme is "While I'm Next to You" (あたしが隣にいるうちに, Atashi ga Tonari ni Iru Uchi ni), performed by Fujikawa. For episode 4, Asami Seto sang an insert song titled "Falling Through Starlight" as her character Raphtalia. Both Crunchyroll and Funimation streamed the series. Crunchyroll streamed the show in both the original Japanese version and the English dub. Plus Media Networks Asia licensed the series in Southeast Asia and is streaming it on Aniplus Asia, iQIYI, bilibili, Netflix, and Disney+ Hotstar. Funimation started streaming the dub on May 1, 2019. Originally intending to air the English dub simultaneously with the original Japanese, Crunchyroll announced that there would be a two-week delay in the release of the English version on May 14, the day before episode 19, "The Four Cardinal Heroes", was scheduled to release.
At 2019's Crunchyroll Expo, it was announced that the series would receive a second and third season. Masato Jinbo replaced Takao Abo as director, and the rest of the staff members reprised their roles; Kinema Citrus is joined by DR Movie for animation production. During "Kadokawa Light Novel Expo 2020", it was originally revealed that the second season would premiere in October 2021, but it was later delayed. The second season aired from April 6 to June 29, 2022. It ran for 13 episodes. In Southeast Asia, Plus Media Networks Asia licensed the second season and is simulcasting it on Aniplus Asia, bilibili, IQIYI, and Netflix. The opening theme is "Bring Back", performed by Madkid, while the ending theme is "Yuzurenai" (ゆずれない), performed by Chiai Fujikawa. On May 2, 2022, Crunchyroll announced that the second season would begin airing its dub on May 4.
The third season is directed by Hitoshi Haga, with the rest of the staff from the previous season returning, with Alfredo Sirica and Natalie Jeffreys also joining as additional composers. It aired from October 6 to December 22, 2023. The opening theme is "Sin", performed by Madkid, while the ending theme is "Suki ni Natte wa Ikenai Riyū" (好きになってはいけない理由), performed by Chiai Fujikawa. On October 19, 2023, Crunchyroll announced that the third season would begin airing its dub the following day.
In January 2024, it was announced that a fourth season was in production, and aired from July 9 to September 24, 2025. The opening theme is "Resolution", performed by Madkid, while the ending theme is "Eien ni Ikkai no" (永遠に一回の), performed by Chiai Fujikawa. Hitoshi Haga reprises his role as director. The series composition is done by Keigo Koyanagi, the character design by Franziska van Wulfen, Sana Komatsu and Masahiro Suwa, the soundtrack by Kevin Penkin, Alfredo Sirica and Natalie Jeffreys. Crunchyroll is streaming the dub in the same day the season aired.
Following the fourth season finale, a fifth season was announced. It is set to premiere in 2027.
Characters from this series are featured in Isekai Quartet, a comedy crossover series featuring franchises published by Kadokawa Corporation, from season 2 onwards. That season premiered on January 14, 2020.
