Trainee Won Yuha loses his chance to join a hit survival show and ends up in a failed idol group. After six years of struggling to keep the team together, scandals and a car accident destroy his career, leaving him unable to perform. Just as he gives up on life, a mysterious voice offers him a deal through a program called “Design Your Idol.” When he opens his eyes, he finds himself six years in the past, right before he lost his biggest opportunity, with a strange system screen appearing in front of him that might let him change his fate.