The Holy Sword Is Here!.Ddraig tells Issei about the "Vanishing Dragon," Albion. Meanwhile on her way to school with Tsubaki, Sona notices the strangers standing outside the school gate and the Holy Sword that one of them is wielding. Heading home, Issei and Asia find the strangers talking to his mother, and to the latter's surprise, one of them is his childhood friend Irina Shidou. The next day Irina and the other stranger, Xenovia Quarta, arrive at the Occult Research Club to tell them that they are to retrieve the stolen Excalibur swords without any intervention from the devils...