Doomsday, a Gift from Death Half a Century Ago

IT engineer Tai Liang received the last message from his younger brother Tai Yang, who was a forensic doctor in New York - an unknown virus code-named DX-7 was spreading. Tai Liang and Fa Xiao Lu Fan, a family of six, have no guns or superpowers. They only have a compound bow and a black notebook filled with various data, from cold weapons and crossbows to the last bullet they captured. They use data to calculate supplies, use discipline to keep the bottom line, and use their own flesh and blood to carve out a way to survive in the frozen northern city. The seasons rotate, and each season is a new survival test. This global disaster was never an act of God. Data doesn't lie. But survival has never depended on data.