A day before their comeback, KickFlip released a highlight medley of their new album and introduced the song the members themselves chose as the one that best represents youth. At midnight on Oct. 5, the group posted a track spoiler video for their fifth mini album ‘KICK OFF THE WALL Pt. 1’, due out Oct. 6, on their official channels. The video previews snippets of the double title tracks ‘Incomplete’ and ‘Kick Off The Wall (Feat. iann dior)’ as well as ‘0 (Young)’, ‘Rockin’’, ‘hate blueberry’, ‘Drop In’ and ‘Let’s Waste Our Youth Together’. The members are credited on all eight tracks of the album. Ahead of the release, the members picked ‘0 (Young)’ as the song that best fits the theme of youth. Keehoon, who took part in writing it, said starting from zero with nothing decided is closest to his idea of youth. Juwang described it as a song filled with overwhelming excitement for the future and the hope that anything is possible, conveying the feeling that “we are still young and a dazzling future awaits.” Donghyun said that if someone asked him what youth is, he would want to play them ‘0 (Young)’, and hoped the song’s sense of limitless possibility would give strength to many people.