(Y/N) (L/N), an exchange student and novelist who just moved to Korea (which ever korea idk) with her little sister, Hye. Attending to one of the best university, her life is just like any other person would have. She had everything, a good house, job, and not to mention food. Though not the one thing every girl would eventually want in their lifes, a partner, boyfriend. Not that she didn't mind not being in relationship, who needed a lover anyway? One day she came across an app called Mystic Messenger, a certain messenger app to talk to anyone you please. Once she downloaded the app, some stranger sent her message to go to a apartment along with a passcode to enter it. Who knew opening a single door would changed her life completely.... (CAAAAAAN YOU FEEEEEL THE LOOO- mk I'm done. HURHURHUR LET THE LOVE BEGIN.)