The Baby Fairy is a Villain

The offspring of a deranged fairy, infamous for her malevolence, takes on the guise of an infant to penetrate a noble household and identify the individuals who conducted experiments on her mother. Nevertheless, the quirky men of the family become excessively fond of her, making her mission more challenging. While she attempts to flee, she realizes that reverting to her adult self is impossible, and her adversaries are drawing nearer.