Delivery boy Chen faces betrayal and exploitation. After a near-fatal car accident, he is bound to the Hell Delivery System and gains the ability to see the unseen. He starts delivering the souls with lingering resentments, turning the tables on his enemies, and befriends the ghost Liu Ruyan and nurse Su. Through fierce battles and trials in Hell, Chen rises to become a Yin-Yang Messenger. Eventually, he takes on orders from the Heavenly Court, embarking on a legendary journey delivering celestial food deliveries.
