I Got a Fake Fiancé to Replace the One I Lost. Alright, What's Next?

To the outside world, Anabelle appears to be an ordinary aristocratic daughter, but she secretly possesses an extraordinary talent for magic. Her life shatters on the day her father passes away when her fiancé abruptly demands the annulment of their engagement, falsely accusing her of a crime she never committed. To make matters worse, he inflicts upon her a devastating curse so powerful that even her formidable magical abilities cannot break it. Left with no other options, a desperate Anabelle sets out on a journey to find a cure. Her search leads her to Lord Maverit, a duke who holds the highest rank among the nobility and, more importantly, possesses a Moon Fragment—the sole artifact capable of lifting her affliction. However, their meeting takes a completely unexpected turn. Before the day is over, Anabelle finds herself pretending to be engaged to this enigmatic nobleman, whose own circumstances prove far more complicated than she ever could have imagined. Now bound to a fake fiancé in place of the one she lost, she must navigate a tangled web of deception and figure out what comes next.