Chu Lin woke up and found that he was a five-year-old little girl. It seems that he was adopted by a powerful person. When she came back ten years later, she was crowned the ninth son of the family. As the ninth son of the family, she had a daughter-loving father, eight handsome brothers, a young lady who hung around all day, and a partner who had been with her for ten years. These were not important, but she found that she was being targeted by an organization, and she was going to be used as a guinea pig.