Lu Xuan is an ordinary young man who became the "Yin Yang Courier" by chance. He specializes in serving ghosts and people in the reincarnation of life and death, and safely delivers special express delivery to designated destinations. In the process, he dealt with capable people and strangers in the underworld and all kinds of ghosts, resolved crises with a humorous and optimistic attitude, repeatedly uncovered conspiracies and truths, and gradually gained a deeper understanding of life and death. Lu Xuan also brought out a major case in the spiritual world hidden under the city through many deliveries, and was accidentally involved in the competition between the human and ghost worlds. He started an adventure with his companions, and finally helped the underworld uncover the mastermind and restore order in the two worlds. In the hilarious adventures of growth, friendship and yin and yang, he completed his self-transformation and gained family, friendship and life philosophy.
