Lin Yan, an unemployed young man, accidentally discovered the mysterious light door under the ancient tree in the back mountain, stepped into a foreign world full of rare treasures, and brought back the first "local specialty" Green Ming grass. In order to solve his livelihood dilemma, he tried to cash in this strange plant with silver-blue halo, but he heard from the antique shop owner that the price was as high as 50,000 yuan. From then on, a life of traveling between two worlds and exchanging mundane wealth with heavenly materials and earthly treasures from other worlds slowly unfolded in front of him. But how many unknown dangers are hidden behind the light door? What kind of disturbance will the treasure trade cause? Lin Yan's journey of adventure and wealth has just begun.
