くろ's manga / #Contract relationship(1)

December 4 DO NOT READ UNTIL IT'S COMPLETED ---- Our FL was isekai'd into a novel as the villainess who was destined to die. After escaping and making a contract marriage with the duke for 3 years. She died and reincarnated into the daughter of the family that killed her. Now she is preparing to get married to her husband for the 2nd time.