Delivery rider Jiang Xiaoman binds to a mysterious System and becomes the courier of the myriad heavens, dressed in imperial yellow robes. He delivers fried chicken to put a stop to a battle between Buddhists and Daoists, helps a holy maiden leave a glowing review for her youth-preserving pill, and uses a Pear Blossom Rain Spear to deal with scooter thieves. When his cancer-stricken mother accidentally swallows a tribulation pill, a System malfunction reveals a shocking truth: the so-called Heavenly Dao is actually a self-rescue program from the Age of Declining Dharma. Carrying an insulated delivery box large enough to hold secret realms and riding a modified electric scooter, Jiang Xiaoman crosses the boundary between the living and the dead. From delivering hangover soup to Meng Po to bringing a package of despair to Pangu, he's here to defy heaven and change the fate of every customer across the Three Realms who leaves a bad review!