Wen Ning, a girl from the capital, was unwilling to accept the marriage arranged by her family, so she went to live on the island of Ao, determined to explore a dusty family past. She met Xie Zhiyu, who acted calmly, and the two made an agreement to cooperate. She would help handle social affairs, and he would help her sort out clues from the past. In the local social circle, she reunited with Song Qingbai, whom she had known since she was young. In the successive twists and turns, Xie Zhiyu came to help many times, and the two gradually developed feelings for each other as they got along. But the path of exploration is suddenly blocked, and family disputes lie before us. Wen Ning needs to make a choice between emotion and the truth.