Nosgalia

Nousgalia (ノウスガリア, Nousugaria) is the Heavenly Father God and the pillar of the gods.

History
2,000 years ago, Nousgalia took advantage of the Hero Kanon's plan - creating the Fictional Demon King, Avos Dilhevia to make Misa, Reno's child, the god's child, and the spirit of the tradition of Avos Dilhevia.

Plot
He first appeared as a new teacher in Anos's class under the Eldemade disguise. He then told the students that Anos is the real Demon King, and showed the student the Contract  saying that Anos is the real demon king which was signed by many famous demons, especially the seven demon emperors.

Weapons
God Sword 

Trivia
Nousgalia's body belongs to the Blaze Death King Eldemade.