"Unravel" (stylized as unravel) is a song by Japanese musician TK from Ling Tosite Sigure, released on July 23, 2014, by Sony Music Associated Records. It was released as his debut single from his second studio album, Fantastic Magic.
The song is best known for serving as the opening theme for the Tokyo Ghoul anime television series.
Tongo released a video cover of the song, releasing on May 7th, 2020.
Mary's Blood recorded a metal version of the song for their 2020 cover album Re>Animator.
Asterism recorded the song with anisong cover singer Pellek in 2022.
Ado included a cover of the song in her 2023 compilation album Ado's Utattemita Album.