Qi Xiaojiu was originally the violent machine ace of the Special Operations Bureau. He returned to the Qi family to learn about feelings. In the Qi family, she encountered a lot of exclusion and difficulties, but she relied on her own abilities and Fei Chiyuan's protection to get through every trick. In the process of returning, her multiple hidden identities were gradually exposed, and she gained family affection and Fei Chiyuan's favor. At the same time, she faced the "social experiment" evaluation and was also involved in the crisis of her friends. In the end, she passed the test, completed the task, and learned to love.
