Chu Zhen retired from the army three years ago and opened a scrapyard in a village in the city to make a living. Until that day, he received a box of old books, with a yellowed experimental notebook inside. When he turned the first page, his eyes were dazzled, and the whole world changed. A translucent tree grows above everyone's head, with various incomprehensible words written on its branches. The tree above the old lady who sells scraps says something about ancient bloodline, descendant of Bai Ze. The tree above the head of the proprietress of the breakfast shop next door is even more outrageous, with the words "Gluttonous Remaining Blood, Devouring Evolution" written on it. Before Chu Zhen could calm down, a black business car parked at the entrance of the scrap station. The car door opened, and a man wearing gold-rimmed glasses smiled and handed over a business card, Sugon Biotechnology, Liu Changgeng. Comrade Chu Zhen, I lost that notebook in your hand. Behind him stood six burly men in black suits, and the trees above each of them lit up with a dazzling red light. Chu Zhen looked down at the top of his head. The evolutionary tree that had been withered for three years and was bare finally sprouted a new bud.