The detective Li Junsheng (played by Zheng Zeshi) who has repeatedly solved strange cases was rescued by a police kennel during the investigation and joined the police dog team. He loves dogs and knows the habits of dogs. After retiring, Junsheng used his pension to open a dog farm in Changsheng Village to fulfill his lifelong wish. Junsheng and his daughter Li Xianru (played by Zhong Jiaxin) depend on each other for fate, and their father and daughter love each other. As a veterinarian, Xianru often treats stray dogs for injuries and opens a pet clinic next to the dog farm.