Seungdae arrives at Jieun's apartment to celebrate her birthday in the company of her boyfriend. Together, they'll spend a memorable weekend.

CEO Han used his own secretary, Karina to seal the investment deal in their own way

Tzuyu requests a last-minute appointment with Seungdae, eager to know more about him and to have a taste on her own terms. He's not one to deny himself an opportunity like that, even if that complicates his own plans.

Seungdae is given a once in a lifetime opportunity. However, first he needs to prove himself worthy and skillful enough to satisfy Twice's leader.

Their stories under in one and only universe.

Thanks to his friend, Seungdae got a ticket that will not only let him enjoy a concert he thought was lost, but also, will be his first step into a series of encounters that many would envy.

Gaeul, A strict dance teacher who's entrusted to teach the Starship ent's next boygroup trainees including Jaeyoung.