Aimer brings the ninth single. The title song is an outro theme song for the TV anime series "Kabaneri of the Iron Fortress." Hiroyuki Sawano produces the song and a B-side track, "Through My Blood <AM>." chelly (EGOIST) participates as a guest vocalist. This edition includes a bonus DVD with the contents different from other edition's. *This edition is available for a limited period of time until the end of September 2016.