At your school, three substitute teachers arrive. Their names: Keith, Hayden, and Colin. All three are vampires employed by Keith’s company. Despite being vampires, the fact that they can function seamlessly in human society garners significant attention from the academy. During his self-introduction, Keith reveals that he has developed a potion capable of turning vampires into humans. This statement provokes a strong reaction from Hogan, a vampire who takes great pride in his species. While he desires coexistence with humans, he cannot accept the idea of becoming one. In contrast, Wade and Rylan, fascinated by the human world, show an interest in Keith’s ideas. Meanwhile, the protagonist stumbles upon Keith and the others holding a clandestine meeting. There, they discover a startling truth: the academy holds a key ingredient for the potion, a material that is secretly being cultivated within its grounds.