Through an accidental substitution marriage, Lin Zhiyu became the prince's wife, who Gu Nanzhou said was "not as good as a hair of hers". On the day of their wedding, he swore to keep his integrity, but in the blink of an eye, he had a nosebleed in her face, and he hurriedly used her handkerchief and socks to cover it up. When the fake Bai Yueguang showed up with the token, Gu Nanzhou suddenly pretended to be injured and lame and put on a big show. In the end, the truth was revealed. The person he had been looking for for ten years was the wife he despised every day, but couldn't help but get closer to her. From living their own lives to being inseparable for a moment, this substitute marriage was ultimately a long-planned destiny.