There's a killer on the loose in Kyoto. Young women are disappearing from the streets, never to be heard from again. Minamoto no Raikō, the legendary samurai, knows that it isn't merely a serial killer, but the demons. After he and other samurai like him drove the demons away, the began amassing in the far-off, desolate regions of Japan, but now they have a new leader: Shuten Doji, the drunken demon, a creature as smart as he is deadly.
Raikō knows he can't face these oni alone, so he puts together a team of Japan's greatest warriors and together, just maybe, they'll have a chance.
The creature is Angoulaffre of the Broken Teeth, great great great great (^10) grandson of Goliath and actually a pretty good governor.