The Fallen Immortal's Remaining Soul Emperor's Daughter

The Mo royal family has practiced immortality for generations. Although they are not immortals, they are so powerful that no one dares to invade. She was originally a forgotten member of the royal family, but she was lucky enough to be chosen by the fairy as the eldest princess of the royal family. She even became a saint of the Mo Kingdom and practiced magic under the fairy. The royal family of the Mo country is proud of her, and the people of the Mo country regard her as their belief in their hearts. He is the eldest son of the prime minister and a good match in the eyes of thousands of girls. They were childhood sweethearts who knew each other and fell in love, and their engagement came naturally. But everything changed overnight. They are no longer lovers, but enemies with a blood feud, and she is even dead. She used the soul retention technique to barely retain her own soul and assist her younger brother. He ascended the throne and became emperor, leading the army to attack continuously. Everyone is scolding him, but only he knows what he is doing? Many years later, sooner or later, the truth will come out. And he will eventually give her an explanation. I have never failed you in this life.