The protagonist Zhao Feng is a courier who works hard every day just to give his family a better life. However, he is often complained by customers, competed with by his peers, and suffers many injustices. While delivering a courier, he unexpectedly found a mysterious package containing a body-building spiritual crystal. The crystal integrated into his body, awakened his body-building spiritual root, and gained the ancient body-building inheritance. Zhao Feng used his time to practice while delivering express delivery. With the help of spiritual crystals, he quickly improved his cultivation and gained extraordinary strength and speed. During the delivery process, he fought off the troublemaking gangsters and evil spirits, protected the customer's package, and gained the customer's approval. In the end, Zhao Feng became a strong urban bodybuilder, got rid of his identity as a courier, and protected his family and those around him.
