Wen Ning escapes her arranged marriage and flees to Ao Island, where she unexpectedly meets Xie Zhiyu, a powerful local figure who is also a mysterious guest secretly visited by her father. Noticing strange changes at home and her father’s unusual attention to this man, she begins to suspect that Xie Zhiyu may be connected to her father’s hidden illegitimate son. She then plans to approach him deliberately in order to uncover the truth.