If so then it won't be the case for a long time. He will have to figure out the truth quite fast so he would save NK's ass from Min's diabolic rape plan. I think the rape plan is ironically what will save NK. Nameless will have to wait before finishing him because of Min.. which will leave some time for Seungho to find these bitches and end their life (hopefully). I am not a shipper of violence but I won't mind seeing SH striking with his sword and make some blood flow. Now, what will make Jihwa change his mind and include Min in the plan... that's another story! So far, he seemed quite reluctant. Maybe he will see SH and NK together again and his anger will literally explode.
He might already be angry enough to include Min depending on how Seungho responded to his confession. Thinking about it tho, that confession was probably a last ditch effort to avoid going through with killing NK.
Yo, what if Nakyum gets kidnapped and Seungho just thinks that he ran away