A team confronts a powerful upper-sequence vampire, the self-proclaimed queen of vampires, who defies sunlight attacks. Despite using ultraviolet light to weaken her, she activates a deadly ability called Deathless Canticle, cutting off an ally's connection and ascending to the Transcendent Realm. The team intensifies their assault, but the vampire's strength stalls them. As their blood supply dwindles, her master orders Aria to inject blood into the vampire to sustain her. The episode ends with the master declaring the vampire will soon be his, while the group faces rising desperation and a dangerous turning point.