In order to investigate his family's injustice, Yun Zhao went to Beijing under a pseudonym and relied on his extraordinary medical skills to cure the plague, which attracted Xiao Yu's attention. The two formed an alliance over an unresolved case and signed a "cooperation contract." He allowed her to investigate the case, and she helped him solve the mystery of the court. While working together, feelings arose secretly, but Yun Zhao discovered that his father's case seemed to be inextricably linked to the old case pursued by Xiao Yu.
