Two years ago, Tao Tao adopted a dog and named Pi Pi. Tao Tao dotes on his new pet dog and they become inseparable.
As he grows up, he also starts to neglect Pi Pi. A chance phenomenon results in a body swap between Pi Pi and a boy named Kai Wen.
As Kai Wen is now able to communicate with dogs, he instantly becomes popular as a dog whisperer.
Pi Pi leads a happy life as a child with his best friend Tao Tao, but fears that one day, he will lose everything when he turns back into a dog.
