Luminous Twilight Valentine ｢ルミナス・トワイライト・バレンタイン, ruminasu towairaito barentain｣, known primarily as Luminous Valentine ｢ルミナス・バレンタイン, ruminasu barentain｣, is a Demon Lord who holds the fifth seat of the Octagram and is one of its oldest members. She is the queen of all Vampires as well as the true ruler of the Holy Empire of Lubelius, where she is worshipped as the "God" of Luminism.