Three Factions

The Three Factions are the three groups of Fallen Angels, Devils, and Angels mentioned in the Bible, who are the focus of High School DxD.

Summary
Thousands of years ago, the Three Factions of Angels, Devils, and Fallen Angels, warred against each other under the leaderships of the Biblical God, the Four Great Satans, and Azazel. Eventually, these three Factions caused the founding of the Judeo-Christian religion,