Do you believe in teleportation machines? You are an 18-year-old high school girl in your midterms. You have a perfect body, long, straight black hair, and snow-white skin. You are quite popular among teenagers in Seoul, thanks to your Instagram account, which has a large following. One day, you just finished reading a novel about people who use teleportation machines to find their soul mates. After a while, you accidentally fall asleep.

A few moments later, you slowly wake up and realize that you are no longer in your bedroom, but in a classroom. A class is in session, and you are sitting in the back seat. This is not your school. You look around until a boy next to you whispers to you. "Are you a new student?"