During the Heian period, Abe no Seimei trains in magic but lacks interest, until a collaboration with Minamoto no Hiromasa arises to solve a strange phenomenon.

During a dark time in the Heian period, when evil forces threaten the kingdom, the emperor relies on the onmyōji to keep the supernatural forces in line. But as political events become highly charged, friction within the order leads to betrayal. Now, Seimei, a talented member of the clan, must face down his master, Dōson, in the hopes of restoring peace to the kingdom.

Kyogokudo is a used book seller who doubles as an onmyouji, or Heian style occultist. His friend Sekiguchi brings him the story of a woman who has been pregnant for twenty months. Sekiguchi investigates further with the help of his friend Enokizu, a detective with the unusual ability to see people's memories. They are hired by the impossibly pregnant woman's sister to find the woman's missing husband and lay this whole matter to rest. In the end, they need the help of Kyogokudo to exorcise the family curse.

A group of demons in the ancient Japanese capital of Heian is dismembering members of a family of Japanese nobles.

In the early Republic of China, as Japan seeks to invade, a mysterious Onmyoji is sent to disrupt China's Feng Shui by locating its dragon veins. Led by Master Qi, a group of Chinese Taoists uncovers the plot and engages in a fierce battle of strategy and magic to protect their nation's sacred power.