Liu Xiaoxiao, a young man from a convenience store, accidentally met "Xiao Dong", an alien who can shape-shift and is extremely afraid of loneliness on the rooftop, and was involved in a big adventure about alien hunting, earth crisis and cosmic conspiracy. With the addition of their partners, a group of characters and aliens with distinctive personalities formed the quirky "Earth Special Operations Group". Facing the escalating alien threats and the huge chess game laid out by the ultimate BOSS Niebra, they used humor, wisdom and humanity to resolve the crises. During the ups and downs, compact and hilarious journey, they completed their self-growth and achieved a "laughing reconciliation" between the earth and the alien civilization. The book is divided into ten volumes, each volume is independent but interlocking, from the initial emergence of the secret to the outbreak of crisis, to the climactic decisive battle, and finally ends successfully in laughter.
