Strike The Blood: Append Vol. 2 (Light Novel)

Kojo Akatsuki is, at first glance, an ordinary high school student at Saikai Private Academy on Itogami Island, a man-made island south of Japan that is a sanctuary for monsters and demons. However, there’s something different about Kojo: he is suspected of being a powerful vampire known as the Fourth Primogenitor who has the potential to disrupt the balance of power in the world!
Yukina Himeragi is an apprentice Sword Shamen from the Lion King Agency who is sent to observe Kojo and eliminate him should he prove to be a threat. Taking her role as observer very seriously (perhaps too much so), she moves into the apartment next to him and begins following him everywhere. However, she soon realizes there is more to the situation than she first thought, and unbeknownst to her, there are threads of fate that bind them together as she eventually begins to develop feelings for him in this supernatural action light novel by Gakuto Mikumo and Manyako.
Day and Night of the Arai FestivalIt’s time for the big school festival Arai Festival at Saikai Academy, and Kojo and his classmates are busy preparing for their VRMMO virtual reality haunted house! But things soon go off the rails when their magic server starts going out of control due to mysterious data being mixed in that causes all sorts of strange events to begin happening all over school. Someone seems to be behind the scenes pulling the strings, but who could it be?! Find out in this second side-story to the main series!
Notice: This light novel is written in Japanese.