I'm Leaving the Villainess's Station

Carmilla falls in love at first sight and enters a political marriage, believing she was the main character of a grand love story. In reality, she was the villainess. After a tragic miscarriage and carriage accident, she awakens to find she has been given a second chance, transported back to the time before her marriage. Determined not to throw herself into the same "hell" again, she seeks to avoid the marriage and change her tragic fate.