Based on Exo's "Mama":

Don't worry about my name for now. This is what I can tell you about me. I'm 19. Female. I'm the daughter of a mermaid and wizard. You will probably never meet me but I sort of hope you do... I don't live in your world anymore. I used to but now I've gotten involved in another world with people who could use my help. I don't know how I know all of this. I don't even know if I'm awake right now. Something inside of me is telling me all this and I want to tell you. This is the story of how it all started, where it is now, and hopefully, where it will go...