My Legal Younger Sister Insists on Swapping Marriages, Sending Me to Become a Marquise's Wife

Although it was strange why her sister was acting this way, when a pie falls from the sky, you have to catch it!!! In her past life, her sister had envied her: "Since childhood, Qin Yuan could only pick up the scraps I didn't want. Why did she become the Prime Minister's wife and enjoy such glory, while I was despised by my husband, trampled upon by concubines, and lived a life of loneliness?" In this life, her sister was in despair: "Why is Qin Yuan living even better?! Where is my Prime Minister's wife status? Why is my husband still just a minor official? Not to mention my mother-in-law is difficult to deal with, there's also a childhood sweetheart cousin watching like a tiger!" Qin Yuan let out a mocking laugh: "This Marquis's wife title, which was practically shoved down my throat, is actually quite delicious, tsk tsk... I can conduct business, I am skilled in medicinal fragrances, I possess strategic depth, and I have brilliant schemes. In my past life, that Prime Minister's wife position was entirely built by my own planning. Such a naive little sister." Let her former husband and her sister be locked together for life; she wouldn't waste any effort climbing the ranks on his behalf in this lifetime. Wouldn't it be better to achieve greatness for herself? —— The Marquis of Dingbei, who married late to guard the borders, is a God of War when he puts on his military uniform, and a handsome gentleman when he shaves his beard; the women who love him can be measured by the truckload. On their wedding night, he abandoned his little wife, thinking that a bit of coaxing would be enough. Later... He discovered that she didn't care at all and had just been playing along to coax him. Daily life in the Marquis's Manor The Marquis of Dingbei knelt at the door: "I know you have me in your heart, Madam. Please give me one more chance." After a long silence, Qin Yuan: "Depends on my mood." Others: "Tsk tsk, the Marquis is the Madam's professional simp."