DAY6 (Even of Day), a unit composed of Young K, Wonpil and Dowoon, is opening a variety of content ahead of the release of the album 'The Book of Us: Gluon - Nothing Can Tear us app' on August 31.

On August 20, at midnight, the company released three individual teaser images of Wonpil, which offer a glimpse into the concept of the new album on its official SNS channel.

Ahead of the release of the new album, he said, "It's an album with a different color than the entire DAY6, so I wonder how you'll like it. I hope we can give some comfort and strength to everyone who listened to our music.