The Serpent in the Empress's Chamber

Story:

Lenisha helps Laxus, a bastard prince and her paranoid husband, ascend the throne, only for him to strip her of everything she holds dear and cast her away from the imperial palace. But the fallen empress still has one burning purpose left, and that is revenge. To reclaim her power, she allies with Sir Kassius, a war hero with unique features and a mysterious background. As they work together to ensure Laxus meets a painful death, they find themselves secretly drawn to each other.