In mid ’90s, 3 female high school-grad office workers take up English classes together to get promotions and they team up to uncover corruption within their company.

Rebellious Ki-soo from North Korea is mesmerized by tap dance in prison camps. Ki-soo joins as a team member of a dance team named ‘Swing Kids’. Yet suddenly, their dreams…

Soo-hyun comes across magical pills that allow him to go back and forth in time. 30 years to the past, young Soo-hyun meets future Soo-hyun and learns that his girlfriend…