There Is Something Wrong with Him, the General, a Mortal Enemy.

In my previous life, I was the general's mortal enemy, and he sent me to the West with a knife. When she opened her eyes again, she became the lowest-ranking maid in the General's Mansion, the kind that he bought back personally. In order to survive, I tried my best to act nice: "The general is brave and unparalleled, and I am willing to work like a cow or a horse." He stared at me for a long time, then suddenly smiled: "This general is not short of cattle and horses, but a bed warmer." I was so frightened that I climbed over the wall all night, but he caught me by my collar. As the candlelight flickered, he held my chin and chuckled: "Why are you running? The accounts haven't been settled yet, my—sworn enemy."