In the end, Xiao Tao got to know her sister Sue and formed a sweet love with Shen. The detective knowledge she learned from Sue greatly helped her own skills. She changed from a maid to a little detective, and her feelings, life and career have undergone earth-shaking changes.

Xiao Tao Zi is the maid of Ma Minlan's family. Because of Hu Yunlang's death, DOG became a suspect. Sue used her detective knowledge to help Xiao Tao Zi get rid of suspicion. After she was fired, Sue took her in, and Momo became the maid of Sue's family and the assistant of detective agency.

Xiao Taozi's real identity is Sue's sister. Her adoptive parents taught her to read and write. Originally, his family was good, but after his father died, Xiao Taozi came to Shanghai to support his family and became a servant of a rich family. Later, she met Sue. Her identity changed from a maid to a detective assistant, and she found her relatives. She and Shen have a sweet relationship, and Xiao Tao has a happy ending.