The change in chapter 7 will be answered in the future and will be a base for a future preference so just wait till that happens and also I will be Upgrading and add limiters on the system to not make the MC to OP, also as you already read on chapter eight he already exchange his memories and powers for another power, so just wait till the story progresses, oh and there is a one last secret that I will be revealing on the end of the novel so just keep reading my faithful readers