"I'm 25 years old... I can't be an idol." Do Seohan was eliminated from the popular survival idol show 'Stardust Project.' After that, he became a part-time worker to settle into his reality. But he couldn't just forget about his dreams. Suddenly, he woke up as himself from eight years ago. Moreover, right before the show airs! As the oldest member (only in spirit), can he — who has now become the youngest — pass the audition this time and become an idol?