Original Webtoon
Am I a girl idol? Let's be active with a woman for a month?!
Enter trainee Jiwoo, whose team was disbanded a week ago, offers to join him as a hidden member of the company's own training documentary program with 10 days left before his current debut.
Already, the hidden member has played the media as a genius composer twin trainee, and Ji-woo's twin sister, who is not interested in celebrities, has been conditioned to join together.
Twin sister Jisu surprisingly accepts her debut but needs a month of time because of what she is doing now.
But you can't delay your debut. Fortunately, Ji-woo, who has similar appearance, physique, and voice, will inevitably play Ji-soo's role for only a month.