Senna Tengoku is a fictional character, and the main heroine of DxD: Princess of the Forgotten Kingdoms. She is a descendant of Gilgamesh, the legendary King of Urk, arguably known as the First King, and is the princess of the kingdom of Urk, albeit illegitimately. She is currently suffering from amnesia, but was taken in by Issei Hyoudou, and was welcomed with open arms by his family. To many beings, including the Old Satan Faction, she is the Princess of the Olden Gods (オルデン神々のプリンセス, Oruden kamigami no purinsesu), and the Future Queen of Urk (困らせるの将来の女王, Komara seru no shōrai no joō).