The Confused Girl's Guardian Angel

There is a guardian angel beside every girl. They will silently wait for the girl they want to wait for, and never leave. If one day, the guardian angel leaves, Bin does not mean that they have abandoned the girl they have been protecting, but that the girl has chosen another guardian angel. He - a gentle and angelic prince, he and she were the lovers agreed upon when they were children. He, a ruthless heir to the Qiao Nai family, had been trained as a killer since he was a child, but he was extremely gentle towards her. She - a kind, brave, strong but forgotten princess. Looking at the angelic prince, his heart will be moved; looking at the cold and cruel him, she will feel heartbroken. In this painful season of youth, who will be her real guardian? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.