Spoiler : 

The MC is going to be saved by the brother of the ML. The MC is going to be in heat and will end up doing it with the brother of the ML. We will also learn that the MC had told the ML that he and his mother were sold several times by his father and that they also broke their feets so that they could not escape and he even told the ML that he was afraid of being sold again to prostitute himself.

Is that the married guy who appeared in the previous chapters

I feel bad for the ml because it was literally his first love and he thought that finally someone loved him for what he is and not for his money