The Emperor's Runaway Lady

Lady Luna Sutton is forced to marry General Kai Gideon. Framed, she's sentenced to death. She fakes death, hides in Jiangnan, adopting Aiden. Kai Gideon becomes emperor, makes Willow empress, but can't forget Luna. He discovers Luna alive, finds her, places her under house arrest. He investigates, finding Willow framed Luna. Kai deposes Willow, clears Luna's name, and abdicates to pursue her in Jiangnan. Luna is finally moved by him.