In the novels, there’re already 9 story arcs. However, the anime only covered two arcs, the Kyūki and Kazane Arc.
Kyūki Arc The starts from episode 1 to 12 in the anime and volume 1 to 3 in the novel. Kyūki, a winged tiger from the West or to be precise, China has been forced to evacuate after being defeated by another demon. He arrives in Japan and plans to eat Fujiwara no Akiko to replenish his spirit powers and heal his wounds. With him are an army of foreign demons, all unknown to the inexperienced and apprentice onmyōji Masahiro who has started to use his skills.
Kazane Arc The starts from episode 13 to 26 in the anime and volume 4 to 7 in the novel. A
vengeful spirit has been summoned and has cursed Yukinari of the Fujiwara clan. A mysterious woman appears and tries to take Seimei's life. Someone is trying to open the gate to the underworld, events from fifty-five years ago reoccur, and Guren as well as Masahiro must undergo the ultimate test.
Tenko Arc The starts from volume 8 to 12 in the novel.
Kagami Arc The starts from volume 13 to 17 in the novel.
Tamayori Arc The starts from volumes 18 to 22 in the novel.
Soho Arc The starts from volumes 23 to 26 in the novel.
Kagome Arc The starts from volumes 27 to 31 in the novel.
Shiou Arc The starts from volumes 32 to in the novel. ==Media==