Responses
I think it's cause they know that the MC and his dad ain't blood related and since the dad didn't want that fact to be known it was kind of indirect blackmail to let this matter go or they'll spread the fact that the son of the prez of the supreme council ain't related by blood to him
I'm not sure why something like this matter tbh, but that's how it was

I finished it but does anyone know what geumsoo and his father pretended to do? like in the police station why were they both laughing?