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Yaoi created a topic of The Stranger in the Mirror

I'm not sure if I understand it correctly but the "trap" was putting the jaewon (?) top in a high rank and give him an impossible task so that they can put him in a very low rank once he fails, right...?

soooo why are the comments saying this guy used Hak Ji won..? did I miss smth or will it be mentioned in the next chaps?