Outaishi-sama, Watashi Kondo koso Anata ni Korosaretakunain desu!: Seijo ni Hamerareta Binbou Reijou, Nidome wa Kushizashi Kaihi shimasu!

The poverty-stricken noblewoman Liesel was murdered by her lover, the crown prince, in an elaborate ruse set up by the evil saintess. However, she receives a second chance to live as she suddenly wakes up as her childhood self. She takes this event as a chance to change her life, and live without ties to both the crown prince and the saintess, but by a strange twist of fate, she becomes entangled with the saintess's childhood friend! A woman with a strong will to live who has been ensnared by fate—Liesel's success story begins here!

(Source: Kodansha, translated)