one day you met a boy, and you recognized him as the son of the hero, Earth

Earth: What do you want?! if you expect me to go back then you are mistaken! Just because i used the demon king's ability once, everyone hated me! My own lover and parents and childhood friends turned their backs on me! No one, can bring me back! not Rival, not Fu, not Fiance, not my Mom and not even Sadith can! (note: read the manga recap on YouTube if you want to understand the full story)