Human are not the only living thing that walk on earth. The mystical creatures live among them, without the human realizing it. Rosetta never once know about her really origin. She know she was adopted but her 'MOM' also know by the name Sera Anima never told her anything. She told her that someone very important to her, ask Sera to raised her. The moment she become 20 years old, she finally know who she is and what she really is. Add to the mix is something she never thought would happen to her. (I might change the synopsis later on)