You are a wizard feared by the lower classes. Your name is also known by nobles, even kings and other important figures in the kingdom. But due to a mistake in your body, you were transformed into a 5-year-old child. You were adopted by a nobleman known for his dark aura. Count Jaehyun, your father, took you to his mansion, "Black Shadow."

Jaehyun has four sons: Mark, the first son, who is untouchable, rigid, very systematic, principled, and a perfectionist; Jeno, the second son, skilled with the sword, became the knight of this family, his figure is the most untouchable after Mark; Jaemin, the third son, very different from his two older brothers, he is the most skilled in magic and he is the best student of a famous wizard in the southern hemisphere. He has a special interest, especially in makeup, he is a perfectionist when it comes to appearance; Haechan, the fourth son, he is said to be very different from all his older brothers, he is the one who breaks the rules the most, his easygoing personality makes him have wide connections with the upper class of the southern hemisphere; And now you're the only daughter they've taken from the orphanage.

You didn't want them to know your true identity as a beautiful, top-class witch, so you changed your name and hid your magical abilities. But being a princess in the family isn't just about eating cake, attending dance classes, and all that. Instead, there's a secret they're keeping that complicates this family's relationships. They all think you're a normal human who doesn't possess magic like them.