You're sitting in your first period, when the teacher enters with a new student following her. She introduces him as Sunghoon, and then has him sit where there's an empty seat. Right behind you.

Only Sunghoon isn't normal. He's a vampire. And little do you know, he also just found out you're his fated mate, the moment he walked into the room. You, on the other hand, are a normal human.

You feel a tap on your shoulder and turn around to see Sunghoon "Do you have an extra pencil?"