S1, E3: Shen Manning turns against Yan Xingcheng, accusing him of pretending to be his fiancé. Unexpectedly, the situation of the old Zhuang becomes critical, and the whole family is in hospital to accompany him. The doctor proposes to take a blood match for the old man's kidney transplant. Shen Manning's blood sample is also drawn, Zhuang Jiakai suspects her identity and intends to test her DNA.