Onigara

There was once an ogre (oni) mother who gave birth to human looking child. Instead of an ogre`s horn, this child was born with a sword in hand called the "Onigirimaru" or Ogre Slayer. He has no name and is only refered to by the name of his sword. Though he appears human, he is pure ogre. Believing that he will become human once all of his kind vanished fromthe world of humans, he sets out on his destiny to slay all of his kind. Even now, in the mother world of Japan, he is still out there slaying ogres. Description from ANN

The MMORPG Onigiri thrusts its players into mystical Japan, a land filled with mythical creatures of Japanese legend. Starting as a lone Oni, players fight against the malevolent influence of the Kamikui as their miasma spreads over the land. 8 NPCS, each with their own distinct personality and skills, ally themselves with the player to help build a legend, and quell the evil that has arisen. As you grow stronger together, so do the bonds binding you to each other.

Animal folk tales set in the titular community, in which local eccentric Ohahai retells several popular fairy tales with considerable license.

A resident of the Floating Castle that battle demon beings, the girl Rasutel (Rasu), chosen by the willful lady, the Demon-Breaker sword, is sent on a quest to save a princess kidnapped by a Youki. Her quest is helped by a mysterious Youki called Anshu (but he has basic color that usual Youkis do not have.... hehe!). She is also hampered in her quest by her demon-being oriented younger brother who seeks her golden eyes, the heritage of their father, the Golden Youshu.