The Cursed Beast Prince

After a masquerade, Prince Kit mistakes Ella's stepsister for her and hides as a guard in her family—ignoring and hurting her. Heartbroken, Ella chooses to marry the cursed Beast Prince. Kit discovers the truth and sacrifices his lifespan to see her. On her wedding day, he asks her to leave with him. Ella forgives him, but returns to her beloved Beast Prince. She chose the beast over the prince.