Originally released on April 10, 2023, by Sony Records, "Kizuna no Kiseki" served as the opening theme song for the third season of Demon Slayer: Kimetsu no Yaiba.

In February 2023 during a special stream, the opening song for the third season of Demon Slayer: Kimetsu no Yaiba was revealed.

[1] On Twitter, the official account of Demon Slayer announced Man with a Mission and Milet would provide the song.

Directed by Yasuhiro Arafune, the music video primarily takes place atop the Tokyo Tower.

[7] In June, Man with a Mission and Milet performed the song on the Japanese YouTube channel The First Take.