Shen Qiqi met Xiao Cheng at an orphanage when they were children. After growing up, her adoptive father was suddenly murdered. Her adoptive sister Shen Rou colluded with outsiders to covet the family property and also impersonated her childhood sweetheart. Shen Qiqi coincidentally met Xiao Cheng again, and the two joined forces to investigate. They uncovered the mastermind Chen Bo and the mole within the Xiao family, thwarting a series of conspiracies. After the dust settled, the two found their happy ending, restarted the project left by their fathers, and began a new fulfilling life at the orphanage.