Harutora Tsuchimikado was born into an ancient clan of Onmyouji known for their mastery of all things occult. Unfortunately, he didn’t inherit the magical ability to see spirit energy, so he was doomed to live a normal life. At least, that is, until a mysterious girl from Harutora’s past returns to alter the course of his future!
All Harutora Tsuchimikado wants is to spend his days idly with his friends, but as a descendant of the famous onmyo mage, Abe no Seimei, he has no choice but to follow his family's traditions.
After the festival, Hokuto is mad at Harutora, and Harutora and Natsume meet to sort out family issues. An interruption leads to a confrontation with Suzuka near the Tsuchimikado main house.
Harutora and Natsume interrupt Suzuka as she tries to bring her older brother back from the dead.
Harutora and Touji arrive at the elite Onmyo Prep School, which Natsume also attends, but their presence causes conflict with some of their new classmates.
Harutora makes friends with his classmates after the battle of the familiars, which upsets Natsume. However, when Natsume is in danger, Harutora and his new friends fight to save her.
Weird rumors are going around about Harutora and Natsume, and they are made worse when Harutora and Natsume go shopping together on their day off.
Six months have passed since Harutora and Touji transferred to Onmyo Prep, and it's time for their end-of-year exams.
Touji's past is revealed as he struggles with turning into a half-ogre, and Harutora has to choose between helping his friend or protecting Natsume.
Harutora runs to join Natsume and Kogure in their fight against the nue as the other exorcists fight the other spirit disaster.
When the new school year starts, Suzuka also enrolls at Onmyo Prep, and Harutora and Natsume must keep her from finding out that Natsume Tsuchimikado is really a girl.
In order to keep Suzuka from telling everyone that Natsume is a girl, Harutora and Natsume are forced to do everything Suzuka wants, and Kon ends up in a predicament.
Harutora's class is going to a special training camp, and Harutora and Natsume are excited to get a break from Suzuka. But when they get to the camp, a certain someone is already waiting for them.
Harutora and Natsume struggle with telling each other their feelings while Doman mounts an attack.
Harutora and the others face off against Ashiya. Doman invades Onmyo Prep with his army of Tsuchigumos as he searches for the Raven Coat.
In the aftermath of Doman's attack, Harutora and Natsume have a strange encounter and learn new information.
The members of the Twin Horn Syndicate start panicking as the plan to eradicate them from the Onmyo Agency begins.
Shaver suddenly attacks when Etou approaches Harutora and the others, and Harutora must find a way to stop him from causing any more damage.
Harutora and the others return to school for the first time after the incident that revealed Natsume's true gender.
Takiko visits Harutora and Natsume at Onmyo Prep while they are still in the middle of their fight with Kyoko.
Natsume reflects on her relationship with Harutora as they go with the others to the fireworks festival.
As Harutora tries to come to terms with what happened, Yashamaru approaches him with a proposition.
Harutora is brought to Chief Kurahashi's office while Touji and Mr. Ohtomo lead separate attacks on the Onmyo Agency.
Things come to a head at the Onmyo Agency as Tenma finds his way into the building and joins the others.
Memories from the past mix with the present as Harutora tries to bring a beloved friend back from the dead.