beta
Even though we know inseop is smart, one of the noticeable traits he has is when he makes a mistakes because he couldn't believe that he didn't thought of it before. Like when he texted gijeong that she was innocent and then later on posted about her involving the detective so she would inevitably be fired, he didn't expect gijeong to cut ties with him I think he expected gijeong to go to his office again to ask for help so he was very shocked that she decided to cut it with a "thank you for everything" and that time when he killed the mom just so he could have a reason to see her, you would think that it would be logical to at least come up with a reason for being there but he didn't, he didn't even come up with one immediately and decided to switch the topic.