Some spoiler
Don’t worry, he gets more likable as the story goes on. The turning point is when Nahyeon gets hurt protecting him, and that’s when he finally realizes he’s not playing a game anymore. This is his reality, and someone almost died because of him. That’s also when you can see his feelings for Nahyeon change from just using her for his own benefit to actually caring about her.
In the surveillance arc, Nahyeon and Yuhan are separated the whole time, and when Nahyeon checks on him using the “appearance” function, he keeps thinking about her and wondering how she’s doing. It’s honestly really cute
And if you like Siwoo, you’ll definitely like this arc.

Is rhis story a set romance kind of one or will it be 2mls and we all know who's the protag will be ending up with?