A talented girl who has never mentioned her family becomes a female detective - Xing Tong Ai in order to solve a murder case ten years ago. Rookie detective Ying Niye is assigned to work with her. Xingtong Ai can not only read a large number of books quickly, but also has an amazing memory and can never forget all data. She also has keen observation skills and can grasp the smallest clues. When everyone regards the case as "nonsense," Xingtong Ai can always peel off the cocoons step by step and turn the clues that people ignore into the key to solving the case. When Ying Niye saw Xingtong Ai's ability, he decided to follow this crime-solving genius and solve a series of unbelievable crimes together! They solved incredible criminal mysteries one after another. Just when she took over a certain case, the black hand behind the scenes reached out to her, and she almost died. When she was rescued by chance, what problems would be waiting for her to solve? Will she be able to solve the murder case ten years ago?