Review Detail of Aeternabilis in Uchiha's Butterfly

The story was really good it is worth the read. HOWEVER, to me this novel has been ruined. The author introduces a reincarnation type figure that utterly destroys everything built/in the story. To me he ruins everything. As soon as he shows up, around that time. It just gradually starts going downhill. I mean everything the author justifies his reasons is the mc is too op etc etc. However, compared to the rest she rly isn't. She doesn't even have ems and I can think of tons of ppl that could destroy her. Another thing for me is I feel that reincarnation dude is just to put everything so it somewhat follows canon in some way. Like the mc makes changes and that other guy makes the "changes" irrelevant and makes it follow back to canon. Granted it happens in different ways. However, at the core it is what he is doing. Overall, im utterly disappointed that a great fanfic to me was ruined by this. Gl to author for future stories.