True and False Princess

She is the youngest daughter of the late emperor, Princess Duanfeng, and the only daughter of his consort Huangfu. She is the late emperor's most beloved granddaughter. She is the princess whom the current emperor regards as his biological daughter. She has everything that any girl could dream of, but she was kidnapped when she was in her infancy, only to be returned the next day... Seventeen years later, the princess became seriously ill, and many doctors were helpless. However, she recovered without any medicine at the hands of a mysterious man. However, after recovery, the princess seemed to be a different person, no longer the previous princess, and all of this was only due to a huge conspiracy...