@Galouz
Yea, I'd say that his companions skills are much more visibly OP. Yes, his skill is currently OP. However, like you said, he had to spend years leveling it to get it to the point that it was that powerful. Whereas Sora and Mu's abilities are overpowered at low levels.
I understand that the mother wasn't exactly treating her right in the beginning, but she certainly did not deserve this shit from that guy. I feel sorry for her even if she hasn't been the best mother. Unfortunately, I feel her self-hate will spiral and she'll hurt both her and the MCs. I...