I've been reincarnated as the daughter of a reckless Marquis, a disgrace to the family except for her national treasure-level beauty. Until I turned five, no one came to find me, and I was left abandoned in a corner of the Duke’s mansion. If things stay like this, we’ll both be kicked out just like in the original story, and I’ll die along with that father of mine. In a desperate situation, I managed to clean up my father’s messes, dealt with the women he’s obsessed with, and handled all sorts of problems. Finally, my noble grandfather called for me! “You, unlike your father, are quite useful. You'll be my succesor.” “…Me?” Suddenly, me? This is the story of Erusha, who reformed her handsome but useless father and eventually took over the entire family.