“Just how far can you go to get what you want? Are you willing to be lost in the darkness in order to do so? Will you have the courage to gamble your life in order to achieve it? A life full of mystery, is this the life where she was meant to be? Face hardships from her young age, the girl meets the demon princess and ends up having a contract with her. Wanting to find her family, she did everything she can do in order to find them. Even if it means that she must defy many things. But is it really her family she was looking for? Or is it herself that she wants to find?”