The song was used as the first opening theme for the second season of the anime series My Hero Academia.

Yonezu referred to "Butter-Fly", the opening theme song for Digimon Adventure, as an example.

The first release, regardless of version, contained advance applications for tickets of Yonezu's live tour Fogbound, which started in November of that year.

The music video for "Peace Sign" was released on Yonezu's YouTube channel on June 7, 2017.

On December 18, 2017, a special music video for "Peace Sign" using footage from My Hero Academia was released on Toho Animation's YouTube channel.