The Irregular at Magic High School (Mahoka Koko no Rettosei) 11 (Dengeki Bunko) [Light Novel]

[Machine Translation] Major Angie Sirius, the commander of the USNA's most powerful wizard unit, the "Stars," and Leena, an exchange student at a high school for the study of magic. The "vampire" incident that occurred at the same time as her visit to Japan ended with their attack on the high school and Tatsuya's repulsion of them. However, the main body of "Parasite" escaped from its "host" and continued drifting in this world, and found its next host. A humanoid home helper robot. Pixie, a parasite that copied the pattern of Honoka Mitsui, who was nearby, decides to follow Tatsuya because of its origins. Tatsuya, who understands "parasite" through the information from Pixie, goes to the Aoyama Cemetery at night with Miyuki and others to exterminate the remaining "parasite". The clash between the "most powerful magician" and the "visitor" from another dimension reaches its final battle at the high school of magic!

USNAの最強魔法師部隊『スターズ』総隊長、アンジー・シリウス少佐こと、魔法科高校交換留学生・リーナ。彼女の訪日と同時期に発生した『吸血鬼』事件は、彼らによる魔法科高校の襲撃、達也によるその撃退という結末で幕を閉じた。しかし『パラサイト』本体は『宿主』から抜け出しこの世界を漂い続け、そして次の宿主を見つけ出した。ヒューマノイド型ホームヘルパーロボット。付近にいた光井ほのかのパターンをコピーしたパラサイト=ピクシーは、その出自から、達也に付き従うことを決める。ピクシーからの情報により、『パラサイト』を理解した達也は、深雪らを連れ、残りの『パラサイト』を退治すべく、夜の青山霊園へと赴くが―。『最強の魔法師』と別次元からの『来訪者』を巡る激突は、魔法科高校を舞台に最終決戦を迎える!