When the vanished Zero Kiryuu reappears at Cross Academy, Yuuki Cross feels relief at his safety yet notices that Zero has altered in many respects. Because of the decisions he took, Zero is deeply haunted by visions, and he pursues the cause—unaware that the answers might lie far nearer than he imagines. Soon Yuuki herself is besieged by dreadful hallucinations, and she turns to the only one who can shed light on her obscured past for answers that have haunted her: Pureblood vampire Kaname Kuran, the person closest to her heart. Yet what will unfold when the truth finally ever surfaces and what consequences will follow?