Strong Girl Nam-soon 1x6 Mystery X Season 1 Season 1 10 Episodes Hee-sik witnesses the jarring effects of the drug when it strikes his team leader. Nam-soon's search for evidence garners attention from foes. 1x1 - Birth of the Strong Girl 1x2 - Gangnam, Here I Come 1x3 - Three Generations 1x4 - Reunion 1x5 - Vigilante of Seoul 1x6 - Mystery X 1x7 - Moonbow 1x8 - Light and Shadow of Gangnam 1x9 - The Root of Vice 1x10 - The Stand-ins
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