Lin Mo, an ordinary office worker, accidentally encounters the scene of a murder in an alley late at night. Unfortunately, after being silenced, he is reborn three days before the murder. He thought he was getting a second chance in life, but found out that he was endowed with a strange "unlucky constitution" - he was hit by flower pots while walking, encountered knife-wielding bandits while shopping for groceries, found human remains while fishing, and was able to break into human trafficking gangs even when he went to temples to pray for blessings. What's even more bizarre is that along with this series of bad luck, he unexpectedly gained the ability to understand animal languages.
From the moment he was rescued by the black cat Xuanying, Lin Mo's life was turned upside down. Forced to become a "regular visitor" to the police station, he began to assist the police in solving bizarre cases by relying on the intelligence network he had established with the city's animals. The stray dog brigade, the pigeon scouts, the rat underground intelligence team... More and more animals became his eyes and ears, helping him gradually transform from the initial suspect to the police's "special adviser".
However, as the investigation deepened, Lin Mo discovered that these cases were actually related to a chemical plant explosion twenty years ago, and that a secret organization with a mysterious paw print symbol was secretly controlling everything. Rebirth is not accidental, the awakening of abilities is more meaningful. Between the suspicion and cooperation of beautiful police officer Su Yuqing, and the loyal companionship of his animal companions, Lin Mo must uncover the huge conspiracy hidden in the shadows of the city, and at the same time learn to control his special abilities.
This is an urban legend that combines elements of rebirth, fantasy, suspense and comedy. It tells the story of how an unlucky man counterattacked and became a police koi, and witnessed an ordinary little man grow into a hero who protects the peace of the city in the face of extraordinary destiny.