Xin Yu witnessed her mother Lin Xi being silenced by her father Xin Guosheng, and she was also beaten to blindness. Before her death, her mother asked her to contact the mysterious person and deliver the evidence. Ten years later, Xin Yu became the "prison bird" of the Xin family. The arrival of undercover bodyguard Chen Yu broke the deadlock. Xin Yu used music to convey code words and set up a trap to test Chen Yu. Chen Yu discovered Xin Yu's secrets and Xin Guosheng's evil deeds during surveillance. The two went from being wary of each other to becoming allies, and joined hands to fight against the persecution of Xin Guosheng and his son Xin Chengye, and finally revealed the truth about Xin Guosheng's crimes. Xin Yu regained her light and gained love with Chen Yu.
