The typical girl that lives next door is super sweet and cute, but does her exterior really show how she acts? Jeon Jungkook is your average high school boy, hanging out with his friends and plays school sports. But only when a girl moves next door to him he becomes curious. As he gets to know her, all things don't seem normal. Something is off about her, but he can't figure out what it is. Kang Y/N moves next door to a boy who goes to the same high school as her. Yet, she hides a secret only her parents know. What does she know that Jungkook doesn't?