Overlord: Fallen Angel-chan Stands Still

This is not the story of someone who transmigrated, nor is it the story of a player.

It is the story of an NPC. No, the story of a being who was once an NPC.

The Great Underground Tomb of Nazarick's Ninth Floor: [Fallen Archangel] Belphegor.

This is her story.

P.S. This story has no male lead.