You were sent to land to marry the king in order to form a peace treaty between your two kingdoms. Forced to a foreign world and culture, you know you will live out your life being discriminated and unloved. That is, until you meet who it is you’re marrying.  

  You’re dead. You’re a soul that wanders the Underworld, like many others. But you can’t remember how or why you died, and you desperately want to know.

You meet a strange man at the bus stop, who turns out to be much more than you expected. Rainy days may not be so bad after all.

  With no other choice, you approach an old castle seeking shelter from the rain. Prince Baekhyun may seem warm and friendly on the outside, but he seems to have a secret he's desperate to keep from you.  

  Your kingdom has been invaded. While trying to run from your pursuers, you accidentally fall down into the “Monster’s Realm.” But they might just be your only hope to fight back.