The Struggle of Being Reincarnated as the Marquess’s Daughter: I’ll Deal with What’s Coming to Me!

The Struggle of Being Reincarnated as the Marquess’s Daughter: I’ll Deal with What’s Coming to Me! Tensei Koushaku Reijou Funtouki: Watashi, Rippa ni Zamaa sarete Misemasu!
One day, the Marquess’s daughter Julianne suddenly regained the memories of her previous life and reflected on her behavior up to this point.
A life of luxury, bullying her siblings and stalking her fiancé…… A horrible personality and overweight appearance, devoted only to wrongdoings that belonged to the villainess of the novel she read in her past life.
In any case if it is a “serves you right” fate from now on, then it will be after I get a beautiful body and soul!
She, who thought this, started a diet together with showing a wholehearted devotion to her family —?!