A demon girl slave who's spent years in a cell, being abused and assaulted by humankind, one day she makes her escape, but chooses to give up on life rather than pursuing a futile attempt at getting away. Before she knows it, she's awoken in an alleyway, in a new body, a new world. She explores the foreign place to eventually meet her family, and finally gets a chance to enjoy life in a foreign place, nothing like the cruel world she came from. She gets to grow as a person, and meet people, yet her bias towards humanity is strong if not unbeatable. She must surpass the hatred she holds for people if she wants to move on and cherish this new life, and beat the eventual challenges she will inevitably face.