
For the sake of world peace the dickus I mean the sword of 7 concubine combined their powers (The ultimate orgy) to defeat one villainess and indeed it was the best time of history where a daughter of villainess is borned. You never heard which guy end up impregenated her but its me the 7 concubines dickus and its everyone's daughter.

No.1 Evidence: Their mother told them that both doyoon and seungho looks a like which means there's a possibility that pink can disguise himself as doyoon.
No.2 Evidence: The way he touch his arm during shooting when pink guy stumbled the guy and mogyum accidentally got hit by a random object, means the pink guy had injury in his arm which shown in mogyum's memory.
No.3 Evidence: Pink guy had disgusting reason to kill mogyum. yes jealousy.
No.4 Evidence: "I can no longer protect you"said by doyoon, seems like somebody knows what he did to mogyum.
Theory: Pink guy is in love with his step bro and incredibly jealous on mogyum because he takes doyoon's all of his attention, doyoon is a pedo who probably seeks love from mogyum ever since he was a kid, damn he's a pedo but I'm simpin' for him, such a crazy person I am and we thought pink guy is doing all his task but actually he is the impostor all along!
Is there any spoiler if melissa beat the shit out of this fake doppelganger? hell I would be at ease if she did. Even if they are twins Nine is more handsome and better than that shithead.