General Wei's daughter Su Nan (nicknamed Nannan) was born with a python on her forehead and was regarded as a monster. Her parents died when she was three years old, and she was pushed into the palace by her greedy uncle to be the "sacrificial concubine" for the frail prince Nan Jingyao. On the day of the wedding, this little fool who couldn't even cross the threshold and only guarded the braised chicken legs when he fell crashed into the cold heart of the five-year-old prince. In the turbulent palace struggle, the sick and weak prince held up a long umbrella to protect her from the wind and rain while coughing up blood, shattering the witchcraft frame-up by Concubine Rong, and seeing through the hypocritical use of Concubine Qi's mother and son.