Review Detail of SOhey in Reincarnated as a Son of the Sword Saint and the Sage

I find this story really very good, a development that advances characters that seem to exist, and above all we are not in a world where the mc must fight every day to save the world by not taking advantage of life, in any case for the moment. I understand criticizing her with respect to the servile Mc with his family but it's just because he adores them, his sister hasn't put a collar on his heart that I know of, right? to conclude very interesting story to see to judge.