As someone who transmigrated, Lin Xiao has neither a golden finger nor a built-in System. At first, he lives in complete resignation, indifferent to everything in this world and simply not caring what happens. But when he accidentally discovers the “truth” about this world, he clings to the hope of transmigrating back to his original world and returning to his grandmother. Drawing on the knowledge he accumulated in his previous life, he brings the world a series of unheard-of inventions, including perfume and gunpowder. Is he inventing these things just to amass wealth? What is the “truth” about this world? How many hardships will Lin Xiao face as he tries to return to his original world? Will he succeed?