TWICE has successfully opened their first world tour TWICE WORLD TOUR 2019 ‘TWICELIGHTS’. TWICE members introduce and unveil the journey of how 9 members became TWICE - from the years of trainees overcoming the hardships of stress and pressure, to becoming one of the most popular K-pop groups. The real TWICE documentary of the beginning, present and the future of TWICE, everything you've never seen anywhere.

A group of close friends who attend a private school all have a debilitating crush on the sunny star pupil, Sun-ah. The only member of the group who claims not to is Jin-woo, but he ends up loving her as well.