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i have a feeling s4 will be about mokhwa's boss, the guy has been missing since the ending of s2.
by the end of s2 i was kinda skeptical about a 4th season, i thought they could wrap everything nicely on s3 and give us some side stories. now i see it's kinda far from over. mokhwa is still sorting out his life and feelings while his relationship w his ex boss never got properly explained. i only hope it doesn't drag too much.
we are all in a loop