Hwanghujiman Hwangjereul Pihago Sipeo

When Louise realizes that all she’ll get in return for slaving away for an incompetent emperor is an early grave, she decides to ditch her role as empress, get a job within the palace, and finally earn a steady paycheck. However, her husband is ousted from the throne overnight and replaced with his long-lost brother, Regan. Just when Louise is about to celebrate her divorce, Regan announces that he’ll keep Louise as his empress. She tells Regan that she’d rather be his subordinate than his woman, but this new villainous employer tells her to be both! (Source: Tappytoon) Note: Includes two extra chapters.