Operation BDZ

TWICE, a group under Seoul's Secret Service (SSS or S3) led by Jihyo, was sent to an operation to save the laburis. The operation was a success and TWICE was disbanded afterward. Years after the incident, a series of events led the members back to each other. A terrorist attack led to a member's disappearance. Jihyo, the only active member left from TWICE to serve the SSS, was tasked to find the missing member. However, it seems like the task is too daunting for her to handle.