Before My Wedding, My Husband's Brother Took Over My Body

I, Shen Liuli, am an utterly unremarkable little cannon-fodder character, and I was about to marry the crown prince for protection. But who could have guessed that my future brother-in-law, Prince Su, the legendary ruthless God of War, would secretly “move” into my dowry and become my personal “accessory”? From then on, everything went completely off the rails. He taught me to use Sun Tzu's Art of War against my stepmother, and I taught him about lipstick that “drives men wild.” He told me to charge straight into battle, and I showed him what “crying, throwing a tantrum, and making a scene” could do. He was so furious his soul nearly flew out of his body, while his constant nagging nearly made me explode on the spot. In public, I was the crown prince's gentle, obedient fiancée. In private, I spent every night in passionate revelry with his younger brother. But why... Was the crown prince looking at me more and more suggestively? And why was the prince-shaped pendant hanging at my chest getting hotter and hotter?