The Struggles of a Reincarnated Marquess's Daughter--- I'll be taken down in Style!

Also known as: Tensei Koushaku Reijou Funtouki: Watashi, Rippa ni Zamaasaretemisemasu!, 転生侯爵令嬢奮闘記　わたし、立派にざまぁされてみせます！, The Struggle of Being Reincarnated as the Marquess's Daughter: I'll Deal with What’s Coming to Me!

by Yasuko Yamaru, Mikan Shinoda

One day, the marquess's daughter, Julianne, regains her memories of her previous life and reflects on her behavior in this life. Extravagant, bullying her siblings, stalking her fiancée - She realized her devotion to wickedness, combined with her vile personality and fattened appearance, perfectly mirrored the villainess of a novel she had once read about in her previous life. If I’m going to be taken down in the future, then I might as well clean up my body and soul! With this thought in mind, her new diet and devotion to her family had begun! (Source: Alpha Manga)