It seems to have been suddenly carved into the body of a living creature.The engraved humans became able to handle special powers,the world was plunged into confusion due to the magnitude of their power.

Half a century after the appearance of the runes...
Yusuke, who has been exterminating evil demons as a heroic “Oni-killer” of Japan, achieves the conditions of his own rune, “The Book of Chudo,” and obtains the skill to return to the past. All in order to save his precious friends who were lost in the defeat of the Lamia Queen about 30 years ago.

The powerful rune battle is about to begin!