Ruan Ningchun has been dependent on her grandfather since she was a child. After her grandfather passed away, Ruan Ningchun went down the mountain to look for her biological father, but accidentally misidentified Chen Yiqing, who looked similar to her biological father. Ruan Ningchun trusted this "father" very much and helped Chen Yiqing solve many cases. With his cute personality and extraordinary abilities, he became the favorite of the Special Security Bureau, and the relationship between the two became deeper as they teamed up with Chen Yiqing to solve the case. The good times did not last long. Qin Ruide, who was obsessed with immortality, set his sights on Ruan Ningchun's destiny. He invited the two of them to his home by repairing his relationship with Chen Yiqing, and secretly caused trouble. In the end, he was discovered, and Qin Ruide suffered the consequences.
