On a winter night in Beijing, at the Yunding Club where top tycoons gathered, Shen Yan, the thirteen-year-old princess of the Shen family, and Ji Yan, the fifteen-year-old heir to the Ji family, met unexpectedly. The innocent and gentle Shen Yan took the initiative to chat, and the cold and noble Ji Yan's heart palpitated. The two hit it off at first sight and agreed to meet each other under the moonlight. Ji Yan quietly promised to protect her for the rest of his life.
After the party, the Shen family was suddenly massacred, and everyone in the family was killed. Shen Yan disappeared mysteriously, with no one alive or dead. Overnight, Ji Yan lost all the news about her, and that warm first meeting became the last time the two met in the light.
Many years later, Ji Yan took charge of the Ji family and wielded tremendous power, and never gave up looking for Shen Yan. While he was tracing the truth behind the Shen family's annihilation, he traveled all over the country to search for clues. He turned his longing into obsession and vowed to find the little girl who disappeared in his youth within his lifetime. And Shen Yan, who escaped from death and changed her appearance, was also driven by fate to reunite with him again. The two worked together to uncover the conspiracy of the year, make up for the long missed years, and continue the unfinished love of their youth.