I Put My Life on the Line to Rescue the Kingdom’s Prince, but It Was My Stepsister Who Was Selected to Marry Him

In a brief tale, the unfortunate protagonist, Lily Elbert, possessing strong spiritual power as the Duke’s daughter, embarks on a mission to save a cursed prince. After successfully defeating the demon king and freeing the prince, Lily’s body transforms into crystal, leaving her immobile. To make matters worse, her stepsister Marianne betrays her, falsely accusing Lily of being the one who cursed the prince. Marianne is then chosen to marry the prince. Lily endures humiliating days, witnessing the happily-ever-after life of Marianne with the prince. However, when Lily’s resentment reaches a breaking point, the world plunges into darkness, and time starts moving backward, leading to an unexpected turn of events.