Quirky and adorable theater actress Ruan Nian Chu meets Li Teng, a cold and arrogant guy who possess both high EQ and IQ. Li Teng saves Ruan Nian Chu from a dangerous situation. The two develop feelings for each other, but separated due to different life tracks. Five years later, the two reunite and their feelings for each other rekindled. However the two are faced with a new danger as they work together to unravel the antagonist's schemes.
Zhou Xiao is a big fan of detective novels. Zhao Fanzhou is a student of forensic science who is talented in the field. The two fall into a sweet romance, yet their story ends in a heartbreak when Zhao Fanzhou breaks up with Zhou Xiao. One day, they meet again.