For thousands of years, there has been an alien creature living on Earth, called Meow Star People. They came to Earth from the distant Meow Star, transformed into cats, and scattered in every corner of the world. With their cute appearance and smart minds, they are easily loved by humans. They have no worries about food and drink, but they are unruly and look like experienced gangsters. Xi Xili is one of them. As a genuine visitor from Meow Star, he traveled a long distance to Earth with a mission, but unexpectedly met Wu Shoulong (played by Louis Koo) and his family, and staged a scene of good fortune and a cat-like adventure between humans and cats.