Doomsday: the Barter System

In 2099, on x month x day, it was the middle of winter. At this time, there was a heavy snowfall. People did not think there was any problem, but the disaster was slowly beginning. In the last life, Qin Xiao did not know that the heavy snow would fall for a year, and did not do any protection. He starved to death at home four months after the disaster. In this life, he knew all this in advance, but had no money to buy supplies. When it collapsed, he awakened the barter system... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.