Luo Xiaoyu encounters the alien princess Gemma No. 77, And the two unexpectedly form a cross-border partnership. Alien Queen Karen arrives on Earth with a technological army in an attempt to control Earth's resources. With the assistance of Teacher Baozi, Fatou and others, Xiaoyu and Jima always have strange jokes in every "war" with aliens, and they continue to grow amidst difficulties. The three volumes revolve around the reveal of identity, the interstellar battle and the final decisive battle respectively. The whole book is full of humor and philosophy, with ups and downs, compact advancement, and ultimately achieves inter-species harmony and the defense of the earth. At the end of the story, the aliens and Earthlings join hands to start a new chapter.
