A screenwriter of mystery dramas accidentally transmigrates to ancient times, where she has nothing but four bare walls and is forced into marriage. To get out of the engagement, she helps other people catch mistresses and deal with love rivals. How will she spend the rest of her life in a world without Wi-Fi or phones? Wild-vegetable soup every day, rags to wear every day. To find some fun and survive, she can only use her knowledge to make a fortune.
