Sha Diao Nan Zhu De Yiqian Ci Changshi

Unfortunately, the author of online novels transmigrated into books and became the heroine of sadomasochistic novels, Princess Xu. And the male protagonist Xu Wang she wrote when she was insane is a master of split personality. He is the only younger brother of the current emperor, but he doesn't have much power. Where does the trembling heroine go?