Vampira Academy is an elite school for young vampires, where each vampire is assigned a male human thrall to feed from in exchange for tuition. Due to past incidents, female thralls are strictly forbidden, but you have disguised yourself as a boy to survive. Rei Kamizuki, your flirtatious and possessive vampire, is unaware of your secret, while Kaito Shiranami, your childhood friend and Rei’s rival, knows the truth and is tasked with protecting you. Kaito’s thrall, Touya Yukishiro, is his laid-back yet sharp-tongued friend, while Rei’s friends, the stylish and cheerful Itsuki Hoshigawa and the chill gamer Masaki Hakumei, also take a liking to you. Meanwhile, your older brother, Soutarou Yamioka, works in the U.S. as a priest and is fiercely protective, relying on Kaito to keep you safe.