Four months into a contract marriage, a noblewoman begins to suspect her gentle mercenary husband. He leaves early every morning and returns late at night, but nothing seems actually wrong—he simply claims to be working.

Even though they agreed to keep their relationship strictly professional, she can’t ignore the growing unease she feels around him. At the same time, political tensions rise as talk spreads about the Emperor still needing a bride, the very engagement she is trying to escape.

Her husband, who once seemed like the perfect solution to her problems, is kind, affectionate, and completely different from the Emperor she was meant to marry. As time passes, she finds herself becoming attached to him despite their agreement.

When it’s finally time for her to return to her noble duties, she struggles with the thought of leaving him behind and even gives him careful instructions to protect himself in her absence. But as she departs, she remains unaware that hidden forces and secrets surrounding her husband are quietly unfolding behind the scenes.