V-------------V G-----------PG----------PG13-----------R------NC17Why: V, MO, n, al, as
A very long time ago, an Ogre mother gave birth to a human child. This child -- completely Ogre -- has no human name and is destine to hunt down and kill his own kind. He is known only by the name of his "horn', a sword called Onikirimaru, that is, Ogre Slayer.
It would appear that Ogres enjoy eating humans as well as using humans for their own needs. Sometimes they will hide in the form of a young school girl, other times they lie sleeping, dead, sealed by priests long ago. At other times, Ogre's will make deals with humans, perhaps promising a woman that she will have a child, too bad that as part of the deal she will have to kill her own child [and the Ogre will feast well that day]. Every so often someone will not be aware that they are a haven for an Ogre.
If you like gothic horror and do not mind a fair amount of gore, then you will probably enjoy Ogre Slayer. I found it to be a somewhat similar to the series Shuten Doji, but was a bit more interesting.