This is similar to The "Fleas in a Jar" experiment. Oleg was shaped and taught to not step out of line or consequences will be the result of failure or 'disobedience'. For this situation, the FL would also be in the same place like Oleg if not for her courage. Although,I would say that FL has advantages in this situation because she already learned that she is all she has and nobody to rely on in her past life meanwhile Oleg is still believe that as long as he has someone to back him up then he can continue his attitude.
And it sucks that for him to change for the better it has to get worse for him because while I want him to be able to be independent from his father, I also want him to be independent from FL Because she also clearly doesn’t have his best interest in mind
Poor Oleg like for a while he was the only child the only actual child because the FL and the ML are like 20-year-olds in children’s bodies. He’s an actual child, He’s been beat by his father multiple times, He is clearly the unfavorite of his grandfather, nobody really cares about him, and he went from a whipping boy of his father, to whipping boy of his cousin, and he’s definitely not going to be better than her or anything so it’s not like he’s going to get a meaning title like someone please save him I beg! Save me boy!