Sun Xiaolian is a company employee and part-time novelist. The first book she wrote is called "Heartbeat from the Devil". The demon San Volar and the angel Fogaminot are a pair of fateful mandarin ducks.
One day, a mysterious man gave Sun Xiaolian a talisman. Sun Xiaolian drew a formation according to the talisman, and then successfully summoned the demon San Volard. When San Volard saw Sun Xiaolian, he said that Sun Xiaolian was his CP. However, Sun Xiaolian did not remember what happened. San Volard discovered that Sun Xiaolian had lost her memory because no one helped her, so he began to help Fugeminot on his long journey to find her memory.
Purpose: Cultivation of love