The reincarnated person who go back to earth was hero summoned back to the other world

Sara Blue wolf is a reincarnated person that were in her last year of university, she die in an unfortunate accident and reincarnated as what she is now, a noble woman and first child and daughter of a duke household with a tradition where the first child of the family needed to go to the Knight order to serve the crown, she lived her life and ended being a commander of her unit but in one of her missions she rejuvenated and transported back to earth were she become again a student and again have a normal life when she again go to the same world where she reincarnated, but this time she not die, but she was hero summoned like all the light novels she like to read!