"Once I traveled through time, I became a dowry maid who died for my sister-in-law, and married a yandere prince who was rumored to be a murderer. On the wedding night, he coughed up blood in a sickly way, and the hand that grabbed my neck was as cold as iron: 'Tell me, who sent you here?' The whole house was filled with murder. But I smiled and stroked his fingertips that were shaking slightly from exerting force: "Your Majesty, your heart rate is tachy and your pupils are dilated. Are you afraid?" When modern criminal psychology confronts the top political planners of ancient times, his disguised weakness is full of loopholes in my eyes!