From now on, I am the ugly duckling in the duke's family. Volume 1

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Once upon a time, there was an ugly and spiteful daughter of Duke Atlanta. Trying to get attention, Sylvia committed more and more vile acts until one of them led her... to her demise.
Five years before this fateful event, another girl finds herself in the body of the duke's daughter, who does not wish to repeat the terrible fate of her predecessor. She is brave and clever, and she also has memories of the coming years and, most importantly, she is not concerned about the opinions of others.
The new Sylvia Atlanta passionately desires two things: to be happy and not to depend on her family. Thus begins the story of the one whom everyone called the ugly duckling.