In order to raise money for her mother's sky-high medical expenses, Su Wan worked as a humble cleaner in an office building during the day, and at night she worked as "Xunyin", a mysterious boss sought after by everyone in the guqin repair circle. She thought her dual identity could be concealed from the outside world, until she accidentally took over the order from her boss. Gu Chaoci, a dignified Buddhist scholar in the capital circle, is aloof and stoic, but he is almost paranoid about the "search for the sound" of the guqin restorer. He spent a lot of money and offered rewards all over the Internet, just to invite "Xunyin" to come out and restore the peerless guqin inherited by his family. Everyone in the company knew that Mr. Gu was looking for someone, but no one knew that the master who never saw the end of the dragon was Su Wan, who silently collected garbage next to their workstation every day. One day, Mr. Gu looked at the thin figure on the surveillance camera, using a pair of beautiful hands in an uninhabited corner to easily solve the ancient wood problem that even top experts were unable to solve. His eyes darkened, blocking Su Wan who had just gotten off work. "Master Xunyin, I had a hard time looking for you." Su Wan: "???" Who are you, sir? My monthly salary is 3,000, and I just want to make money to save my life. Please let me go! Gu Chao said with a cold face: "Don't let go." The piano is mine, and you must also be mine.