Billie's Moon Sua and Siyoon from Mystic Story Entertainment are set to launch a unit album. A teaser schedule chart for the duo was unveiled on April 1 at midnight KST. It was announced that teasers would be released starting from that day, beginning with the snap poster. The initial snap poster depicts two individuals engaged in fencing against a red background, with the teaser release dates featured at the bottom.

The teasers will be revealed progressively until the album and music video are officially launched on April 7 at 6 PM KST.