Qin Yue traveled to the Zhou Dynasty due to a mysterious bronze arrow. While exploring the way back, he was involved in the space-time conspiracy of Guanxing Pavilion, and fell in love with Meng Qingyao. After experiencing the test of life and death and difficult choices, he gave up returning to modern times and chose to stay in the Great Zhou Dynasty, turning the bronze arrow into a time and space key. In the end, he married Meng Qingyao, took charge of the Star Observation Pavilion, established the "Gezhiyuan" that integrated modern and ancient wisdom to promote change, and briefly returned to modern times when his son was full moon, leaving behind historical records that recorded the two worlds, and retrieved the "Mountains and Rivers Chronicles" that changed his destiny.