Eliza (Helena) has been reincarnated as the daughter of a duke, but she lacks the six major types of magic that high-ranking nobles are supposed to possess.
Although her biological parents poisoned her, she managed to survive thanks to a certain skill.
Afraid that her new family might reject her, Eliza finds it difficult to reveal that she possesses what is considered a useless skill.
However, she wants to be helpful, so she can't resist using it.
Armed with her supposedly undesirable yet overpowered skill and knowledge from her previous life, she ends up solving problems—and sometimes causing them, too...?!
An otherworldly fantasy begins, starring a reincarnated little girl and a certain “something” that definitely isn't a fluffy creature!