In a school built deep within a forest, vampire girls reside. The story begins as two girls, each with different styles, become intertwined through a 'sisterhood' formed by a bond of blood. With delicate artwork, a variety of characters, and a mysterious plot that keeps readers guessing, it captivates the audience's interest. In this deep, deep forest school, the girls share a secret: they are all 'vampires.' The cheerful and innocent Emil, who is sociable and loved by everyone, contrasts with the solitary Eve, who is quiet, unapproachable, and keeps her heart closed to others. What has the 'sisterhood' formed through their blood bond brought to these two, allowing them to hunt—drink blood—without being discovered by humans?