Monsters exist and usually live well alongside humans in towns and cities of the world of the Lunar Dominion (more commonly known by humans as Lunus), but some also keep to themselves where they're most comfortable: their natural habitats. Some people are not okay with this whole monsters are real situation and hate them, although that's just kind of a given by now. No matter where you go, there's always going to be someone who whines all the damn time. Aya Ramos, a naive 5 year old girl, is sent into the forest of Lunus by her parents and all she is told to do is close her eyes, and count down from 50 when they tell her. When she opens her eyes, she finds herself alone in a place she doesn't know and is completely alone. Instead of being eaten alive by forest-dwelling monsters as her good-for-nothing parents had hoped, she is found by two demi-humans that give her the thing she's never had: a loving family.