Kagu-tsuchi

The Ongaku (音楽) are ancient race of magical, intelligent beings who in Eurasian mythology, where the children between a God of Darkness and a God of the Light. These magically beings, often described as being either Nymphs (ニンフ) that inhabited the world. However overtime, the slowly became corrupted and "tainted" as they dwell into dark side and transform into demonic individuals. During the First War, Hyland was forced to hunt down and exterminate the Ongaku and were believed to be extincted due to this event.

However during the Third War, the wizard named Hugh Draper encountered an Ongaku of the Darkness during a excavation of a ruin religious location. A priest in the Light, Hugh conjured the Blessing of the Light and was able to purify and bring it into the Light.