So I Married the Abandoned Prince

Although Rita Cardinale married Grand Duke Giuseppe Catane to help her lover George become emperor, she is stabbed in the back by the love of her life and loses her entire family. As Rita uses her alchemy to try and stop the emperor's army from taking her fallen husband's land, she is sent back in time to right before she's married. Full of vengeance, Rita wants to stop George from becoming emperor. For her plan to work, she marries Giuseppe again, but why is he acting so different from before?