Responses
It also makes sense why Cheol hasn't cut ties with his family or stood up for himself. Because literally every single person in his family is the same. Not a single one has ever acted in Cheol's best interest. Cheol doesn't know how to ask for help nor does he think he deserves it. He just gave up on ever been treated right.

I was reluctant at first to believe that ML is good for Cheol, but now that I had a clear view fo what Cheol's family situation is.....I'm on ML's side