Hitaka Kugaya, a former kendo champion who often has a weird recurring dream about a mysterious woman, seems to be the only one in his class who is not interested in Takemi Kanata; he meets her in the music room, while she is playing Beethoven's The Tempest, and she warns him that a tempest is coming.

While going back home from school, he is followed by a dog, and when he gives him something to eat it opens a huge mouth, revealing itself as a demon.

At first he doubts Takemi's words, as he does not remember anything, but when he comes back home he finds his aunt murdered by a crow demon, and he is badly injured; when he awakes in a hospital, there is already no way out for him.

Written and illustrated by Hajime Yamamura [ja], Kamunagara was serialized in Shōnen Gahosha's seinen manga magazine Young King OURs from 1999 to 2006.

[6] In North America, the manga was licensed by Media Blasters;[7][8] they only released the first six volumes from October 2004 to September 2006,[9][10] before announcing in 2007 that they had canceled its publication.