
Edit: maybe I would add some development for Min (or whatever is his name, the guy who basically persuaded Jihwa to get Nakyum killed). Because he is the true evil imho, Jihwa is not a killer, he is just a desperate person but he does not have the heart of a killer, Min is whole different story... So theoretically he could be the one to die or be killed or something.

I agree with you about Min. I think he is truly villain material because we is smart and conniving. He was one of the first ones to notice Seungho had changed and he is a master manipulator so weak minded people like Jihwa are really a puppet in his hands. And we don't know what exactly moves him. Is jealousy of Seungho's status in the group? Maybe he wants to be the alpha dog, the dominating figure. Is just pure pleasure of watching chaos and use people? Does he enjoy watching people suffer? Except for Nakyum, all of the male characters in this stories do reprehensible stuff but Jihwa and Seungho are on the side that do their bad deeds out of status entitlement that they were raised in or passion. While Inhun, Min and the assassin are more amoral .... Inhun is about pure ambition, the assassin kills and tortures for money and Min, probably just enjoys the sadistic game of manipulating people. I agree that Min probably is the one who dies, he didn't get the fanservice treatment ( not hot enough to be safe even if he doesn't get a development).
Here's hoping that Tarzan has only muscles but not brains and that maybe he left clues behind even though he thinks he is so smooth.
Unless there was a lot of time between the kidnapping and Seungho waking up, the footprints on the snow will show only a pair of steps and in a size much bigger than Nakyum's. Maybe that's another reason the author had not one but two scenes showing Nakyum and Seungho's shoes together, so the smaller size of NK feet are so evident.
Also, Nakyum not having a winter hat and scarf (and maybe one shoe) could mean these were left behind between one point and another.
My only disappointment in all that is that probably no one will end up paying for this because Tarzan and Jihwa won't be killed or harmed since Tarzan, even though is an addition without any development, is saved by the fact of being hot and potential smut with Jihwa. Since it sounds a bit ridiculous to have all this plot without anyone being hurt, NK arch already gone through a lot of crying, I'm guessing Seungho will be the one taking the fall. He won't die of course but someone has to be bleeding out of all this and the dump pair of Clyde and Bonnie that is Tarzan and Jihwa are being prepped as a side couple and Seungho is up for some kind of torture to please the need for an atonement before he gets Nakyum's heart ... so Seungho will be the cliffhanger of the season, bleeding on the floor in an fulfillment of what Jihwa saw before in his dream but this time it's Seungho dying in Nakyum's arms. Some kind of Jihwa's redemption too. My theory.