To save her dying husband Kyle, Sena gave him her heart and survived on a mechanical one. Three years later, Kyle falls for a scheming teammate and abuses Sena, costing her unborn baby. Heartbroken, she signs the divorce. As Kyle mocks her, her billionaire brother arrives with a war fleet, revealing her true identity as the legendary Commander R. Back in power, Sena dominates the battlefield to expose the conspiracy—leaving Kyle in bitter regret.