At the same that the leader of the USNA's elite magician unit, the Stars, traveled to Japan under the identity of an exchange student named Lina, the parasite incident wreaked havoc on the First Magic High School until Tatsuya and his friends saved the day and brought the incident to a peaceful conclusion. However, the parasite merely lost its first host and continues to wander this world. More importantly, it's found its next host-a humanoid helper robot. After copying Honoka Mitsui's behavior and patterns, the parasite has been reborn as Pixie, vowing to follow and serve Tatsuya. After learning more about parasites from Pixie, Tatsuya gathers Miyuki and the others to head towards the Aoyama Cemetery to fight against a new impending danger!

USNA Major Angie Sirius's arrival in Japan as Lina the American exchange student was suspiciously coincident with the vampire attacks occurring in the vicinity of Magic High School. With the parasites behind the uproar finally neutralized, things have mostly settled down. However, since they merely vacated the bodies they were inhabiting, it's only a matter of time before the parasites find new hosts. As soon as Tatsuya learns the vampiric creatures are still on the loose, he rejoins his friends on the hunt to eliminate the monsters once and for all-even if Major Sirius hounds him in the process!