Vengeance Rises, I'm The Queen

Eliza Collins, Queen of the Zland Kingdom, falls victim to a sinister plot by her younger sister, Eliana Collins, and loses her memory. Mistaking Terry for her savior, she ends up marrying him. After their marriage, Terry's cold indifference and blatant infidelity leave her humiliated and heartbroken. A sudden accident causes her a head injury, unexpectedly restoring her lost memories. To her surprise, Eliza discovers that Terry is an imposter—and her true savior is none other than Ryland, CEO of the Rowe Group. Thus, she begins a carefully planned revenge. Is there another mastermind behind the betrayal? How will Eliza recover everything that was stolen from her? How will she and Ryland uncover the truth beneath the undercurrents and reclaim her rightful place as Queen?

Synopsis from Melolo.