An eerie love letter draws the young Chen Chuan into a series of bizarre incidents, while a mysterious ancient bell transports him to the age of mythology. After becoming Xu Xun's disciple and mastering Taoist arts, he returns to the modern world with his acquired powers, traveling back and forth between evil spirits in the human world and ancient legends. From Lu Ban's mechanical contraptions to the demon-subduing wards of Mount Lao, from mountain lords and their ghostly servants to the sudden appearance of Ji Gong, Chen Chuan repeatedly steps in to save people, gradually discovering that mythology has never truly disappeared. Underlying currents are stirring once again in Jiaozhou Bay, and a new crisis is approaching with the night.