Starting From Today, I’M A Princess?

Starting From Today, I’M A Princess? summary:

A warrior with the mission of defeating the Demon King even if it meant sacrificing her own life. Although it seemed like the rest of her life would be full of a glittering bright path… In reality, it's the gutter! In order to re-find an ordinary life, after having been thoroughly exhausted, she makes a wish.“Please turn back time.”But where's the ordinary life…?“I'm definite that this child is the Princess that was lost 12 years ago.”From a penniless warrior who didn't even have a nameshe became Nanael, a princess who has it all!