Lu Yu'an is an ordinary keeper at Star City Zoo. He has an unknown secret - he can understand what animals say. This is not a talent, but a special ability acquired after an accident. Gentle and patient, he chose to use this ability to quietly take care of the animals in the zoo, until he discovered that the director of the zoo, Zhao Demao, was secretly abusing the animals in order to make profits: withholding food, forcing performances, and even using drugs to control the beasts. Lu Yu'an used the ability to communicate with animals to secretly collect evidence, and at the same time improved the lives of animals in his own way. After secret battles and silent counterattacks, Lu Yu'an made the greedy principal pay the price. When the animals speak in unison, the truth will shake the entire city.
