The great hero Devota worked tirelessly to save the world from evil, only to be betrayed and killed by the very man who raised her. Luckily, she’s granted a new life as a young orphan named Diamond and, through a twist of fate, is taken in by an old comrade, now a powerful duchess. The whole family dotes on her like she’s one of their own, and as it turns out, she actually might be… But with her murderer still at large and her revenge still unfinished, will Dia be able to open her heart to love?