In order to save a girl, Lin Xiao, a delivery boy, awakened the blood of Zhulong and was able to suspend time, but was forced to join the country's extraordinary organization. From then on, he delivered food during the day and killed monsters at night, and unexpectedly discovered that he was the last "Guardian of Time" in the end of the Dharma era. When the myth revives and the world is on the verge of collapse, he must harness the power of time and find his own path of protection between ordinary daily life and the torrent of divine warfare.