The "Spiritshine" is a mysterious power that has existed for a long time in humanity and nature. Hayato Isurugi, an apprentice of a "Spiritualist" whose job is to master the power and exorcise the demons, enjoying a peaceful life at Shinwa Academy.

He's making a charm with his part-time job to earn money, enjoy talking with good friends. And for thanking his sister, he secretly planning to give a gift for all she does for him. But his everyday life was shattered by the unexpected assailant.

Hayato is seriously injured trying to protect his friends while the Academy is in chaos. But on the verge of life and death, he encounters a young woman named "Magatsu", the incarnation of an evil spirit sealed by his ancestors. It was a thousand years ago during the Heian era that the city was attacked by the Thirteen Demons. -- In a form of a beautiful young woman, the calamity smiled.

"Do you want to live in that place we visited so often?"

"It's a deal. Set free the woman with it"

"Give me your power"

So, the story has started

Like the sparkling days of youth

"That small stone woke up something alive!"

Like a clear sky let's begin Magatsu Barai