When the world came, money became useless paper and barter became the rule. The protagonist Su Chen awakens to the "Other Side Trading System" and can conduct absolutely fair transactions with "dying people" or "dead souls": he uses real materials to exchange for the other party's remaining lifespan in the future, unawakened powers, and even the loyalty of the soul after death. From an inconspicuous black market hawker, he gradually became a "ghost banker" in charge of life, death and resources in the end of the world.
