Wen Ning escapes her arranged marriage to Aodao, where she encounters Xie Zhiyu, an influential figure who holds immense power there, and a mysterious man her father has been secretly meeting. Noticing the recent oddities at home and her father’s unusual attention toward this secret guest, Wen Ning begins to suspect that Xie Zhiyu may be her father’s long-hidden illegitimate son. Determined to uncover the truth, Wen Ning decides to get close to Xie Zhiyu, setting in motion a carefully planned act of approach.