Delivery man Chen Yang is cast out by his wealthy biological parents, becoming the laughingstock of the entire city. With nowhere left to turn, he accidentally activates his grandmother's interdimensional pawnshop—able to trade modern items for legendary treasures from other realms. Using just a few bags of rice, he acquires the authentic calligraphy masterpiece of the Sage of Calligraphy, then smashes the auction record with a staggering 150 million yuan—crushing the fake young master Jiang Yu who mocked him on the spot.