Strike The Blood 3 (Dengeki Bunko) [Light Novel]

[Machine Translation] As assistants to Natsuki Nangumiya, Kojo and Yukina are assigned to help capture a "masked possession" monster that appears in the skies over the city of Genjin. However, they are forced to fight an unexpectedly difficult battle against the "Masked Possession," which even Kojo's other beasts of the cloth cannot defeat. Their predicament is saved by a silver-haired girl named Natsune Kanase, who claims to be a friend of Nagisa Ake Nagisa. Furushiro and Yukina, in pursuit of the missing Natsune, are tricked by the giant corporation Meigas Craft and left alone on a deserted island...! This is the long-awaited third installment in the school action fantasy series about the world's strongest vampire on a man-made island in everlasting summer.

南宮那月の助手として、絃神市上空に出現する怪物"仮面憑き"の捕獲に協力することになった古城と雪菜。しかし古城の眷獣でも倒せない"仮面憑き"を相手に思わぬ苦戦を強いられる。そんな彼らの窮地を救ったのは、暁凪沙の友人だという銀髪の少女、叶瀬夏音だった。そして失踪した夏音を追う古城と雪菜は巨大企業メイガスクラフトに騙されて、二人きりで無人島に置き去りに-!世界最強の吸血鬼が、常夏の人工島で繰り広げる学園アクションファンタジー、待望の第三弾。