theory that yurien turned back time before echi turned back time. so there are three timel...

theory that yurien turned back time before echi turned back time. so there are three timelines: the first (when i'm guessing he fell in love with her but she eventually turns into the demon sword, and she doesn't have memories of it because she was not master lvl yet), the second (she still turns into the demon sword and he tries to save her, he can't bring himself to kill her), and now the third which is the present