The protagonist Liang Ce accidentally bumps into the alien cub Xiaobu while delivering food, and is immediately involved in a fantastic adventure surrounding the Galaxy's Wanted Order. He met Oscar, an alien agent, and Tang Xiaoxi, a friend who was enthusiastic about alien culture. As the "alien wandering incident" gradually escalates, the earth has become a place where alien spies and mutated monsters compete. The three-person team traveled through the city, wilderness and galactic space, using their wits to break misunderstandings from all parties, and gradually revealed the truth of the alien world in hilarious conflicts. In the end, Liang Ce and others not only prevented the disaster from happening, but also built a bridge of communication between aliens and humans to jointly welcome the new era of the universe.
