A musical family named by the emperor, the courtyard has deeply locked up many youthful years. The eldest young master has no interest in power, the third young master is addicted to music, the fourth young master is dull and stupid, and the fifth young master is reckless and impulsive. In whose hands will the power of the Sima family fall? What happened to the chime clock, a family treasure passed down from generation to generation? What will happen to the wealthy families in troubled times?