Rosemary Is Your Only Favorite

She was a girl with a rough life. Her father died when she was seven years old. When she was 18 years old, her mother lost her legs in an accident and actually asked her to exchange marriages! ! She resisted desperately, lost her footing and fell into the river. When she woke up, she saw that it was another forced marriage, so what? I want to marry the youngest son of the Fourth Prince! But why did the emperor give himself to this black-faced man in the end? He, the heir to the royal family, has lived in open and secret struggles since childhood. His mother and concubine's warnings from childhood made him understand what a dark whirlpool is behind every humble smiling face! In order to survive in this battle for the right to be the heir, he must fight and win! Do whatever it takes to do this! But when she showed up, things went off the rails??? Yes, a lot of things. . . Gaitian's conspiracy, who was sacrificed and who was fulfilled?