This is a watch spanning billions of light years, a poignant story about the planetary version of Liang Shanbo and Zhu Yingtai, also known as the cultivation of husbands on earth. Although I look down on us earthlings a little, but in such a young year, being so ungrounded is not good for physical and mental health. How can I learn mathematics, physics and chemistry well and travel around the universe without being afraid? To put it bluntly, it is a code of love, hate, sorrow and more. As for Xiao Gong, it is the inspiring life of a programmer chasing his "daughter-in-law" through thousands of mountains and rivers.