Jiang Ruochu accidentally unlocks a chat group connecting time travelers from different worlds. Through the group, she trades with travelers from various dimensions, exchanging supplies, films, books, and real-world errands for rare treasures and extraordinary curiosities. She trades modern necessities for imperial jewels, helps travelers fulfill their lingering wishes, and receives precious pills and special abilities in return. While resolving her family's debt crisis and taking care of her loved ones, she manages transactions across multiple worlds. Each traveler has their own unique circumstances and troubles. Moving between the real world and otherworldly realms, Jiang Ruochu takes on one extraordinary commission after another, accumulating wealth and remarkable encounters. However, the special supplies in her possession also attract attention from various parties, setting her on an incredible journey of cross-dimensional trading.