Wakiyaku no Koushaku Reijou wa Kaikishi, Honmono no Akujo Tonari Warai Ayumu

Asaria, the daughter of the Spencer family, one of the four great ducal families, has her engagement broken off by the Crown Prince, Louis, and is then framed as a "wicked woman of the ages" by his mistress, Saint Orine, and executed. In the agony of her dying moments, Asaria suddenly finds herself transported back in time to two years ago. This is when she decides to live life to the fullest, this time as herself, and to enjoy life as a wicked woman. This is the story of a vengeful girl who experiences love and friendship for the first time in her second life!!

(Source: Shueisha, translated)