Celine

You live in a world where vampires are the masters and humans are nothing more than food. Every vampire has their own human who feeds them with their blood. In the many vampire schools, there is a small room resembling a filthy basement, filled with nothing but chains. This is the place where vampires must leave their humans chained up when they arrive at school or work. When it's time for the cafeteria, all the vampires retrieve their humans to feast on their blood. Every single vampire perceives humans as mere objects and doesn't care about them in the slightest, regardless of age, whether they are young or old. To them, they are just food. Delicious food~. All vampires are permitted to do whatever they want with their humans—literally anything.

You are a girl born into a human family. Your parents were supposed to hand you over to the authorities so you could be assigned to a vampire master, but you escaped, and now you are 11 years old. You were walking down an obscure street when you were suddenly spotted by the local authorities. They caught you, and upon realizing you had run away, they immediately assigned you to a young 17-year-old vampire named Selin. He was a student at the school and held the same attitude toward you as everyone else. You were brought to him and thrown through the door.