Su Wanqing is ill, a disease that cannot be forgotten. She remembers every detail of her life, every betrayal and hurt. Memory is her prison, and she is willing to be a prisoner that no one cares about among the old papers in the municipal library. Until that man broke into her world. Li Xiao, the turbulent business emperor in Beijing, was cold and paranoid, like an iceberg that never melted. He needed a "living computer" that could process massive amounts of information, and by accident, he discovered her. He thought he was keeping a docile canary in captivity, but he did not expect that the memory of this bird was the sharpest weapon in the world. She can restore shattered business secrets, uncover the deepest hidden insiders, and... Remember every inadvertent tenderness he has. Li Xiao: "Stay with me, and I will give you everything you want." Su Wanqing: "What I want is to forget." When memory becomes the sharpest knife, is his love an antidote or a deeper poison? He personally built a golden cage for her, but he didn't know that she had already locked his heart into it with the thread of memory.