To Gibeom’s surprise, the mechanical calculator he bought working at a junkyard turns out to be a time machine! With the time machine, he sets out to find and bring together his past selves. Currently, all 11 versions of Gibeom are living together peacefully, but unexpected problems materialize as Gibeom(s) interacts with people outside of his circle... (Source: WEBTOONS)

[Original Webtoon](https://series.naver.com/comic/detail.series?productNo=4649409) 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.