Review Detail of Sjar in Is it wrong to become a scumbag?

Well personally I like most of Akikan's works but this new one I don't know how to explain it properly but I am kinda uncomfortable in how the mc change like in the first few chapters the mc said that he would avoid having a relationship with others until he grows stronger enough to protect himself and his lover but after few chapters one thing led to another then he have multiple relationships with others plus I personally get frustated at the mc for hesitating too much for breaking the chains or something to get more power like seriosly!? isn't it normal to have a benefits and consequences in getting stronger.... Anyway this fic is quiet good but just not my cup of tea and I rarely write a review so don't know how to express my thoughts properly in a words