Ddraig is one of the Two Heavenly Dragons and the arch-rival of Albion. He is the Red Dragon known as the Welsh Dragon and Red Dragon Emperor who resides within the Longinus, Boosted Gear, wielded by Issei Hyoudou. He is feared among the Angels, Fallen Angels, Devils and the various other factions in the world for his destructive powers, which are said to be able to kill both Gods and Satans.