Kim Taehyung, is 18 year old high school student. He considers himself to be like any other high schooler. He goes to school, gets decent grades, has a group of friends he can rely on, and a functioning household. It's his last year at Seoul High School and all he wants to do is graduate, go to university, and get a job.

Though, this year things changed at Seoul High School. For the first time at this school they have taken in new students, from who knows where. Male and Female students. The thing is, is that they aren't like the other students at the school, they are a little different. Teachers almost pay little to no attention to them, as if they don't even exist. The new students don't talk to each other, or other students of the school unless spoken to. 

Luna is one of the few students that have started going to Seoul High School. She is just like the others, doesn't talk and just watches. She is the only one that Taehyung has found himself drawn to. She doesn't seem like the other students that she came here with, she's got a more approachable, and friendly aura to her and his goal is to find out more about her. What he wasn't expecting was to un-cover surprising secrets, and feelings....