Jungeun. Kim Jungeun, is an ordinary girl that just enjoys singing and playing her guitar in a small coffee shop that run by her childhood friend. Her life is so normal until one day she find herself kneeling on the street with her left eye aching. 

Little did she know, her life will take a turn at that moment. The moment she feel a hand on her shoulder, and look up to see a girl in purple uniform. Little did she know, these all will lead her to discovering things she didn’t know are exist.

And little did she know.. it will cost her a lot.