Choi Dong-goo

Seven years after the roundup in Vietnam, Ma Seok-do joins a new squad to investigate a murder case. He soon starts to dig deeper when he finds out the case involves a synthetic drug and a gang of thugs.

After a successful first season, Webtoon "Agent Jun" is about to begin its second season. Out of ideas, Jun uses an anonymous email plot in his Webtoon, only to see real-life terrorist attacks resembling the story unfold.