I Don't Want to Act Like a Spoiled Brat When I Become the Legitimate Daughter of a Wealthy Family.

[Sexual transformation + Slow heat + Unhappy writing + Change of marriage + Yandere sister + Waistcoat crisis + Long-lasting love + Business war tactics] Chen Dan traveled through time and became Chen Xiaotong, the legitimate daughter of a wealthy family. The system (Lingshu) only taught her two things: to be a lady, and to wait for marriage. She flipped the table. She signed a gambling contract with her father in public, lost her status as a legitimate daughter, and moved into the maid's room. During the day, he pretended to be sick by eating "suspicious" snacks sent by his concubine. At night, he dressed up in men's clothing and went around the West Street under the pseudonym "Dong You", fighting birds, and stealing lion jade from the Merchant Guild. She beat Lin Junxiao, the young master of the Lin family, in the ring, and patted him on the shoulder in the wine shop and called him brother-in-law: "Brother Lin, Feihong has something big to do on the winter solstice. If you need an errand boy, please call me!" She thought she was accumulating chips for a comeback, but she didn't know that the "good brother" who always smiled had already sniffed out the secret of the blue field jade around her neck. Little did he know that her concubine Chen Nuanxian, who was carrying a Tang knife and crawling into bed late at night to have a secret kiss, was smiling and throwing "Rosemary-kun" into the snack box: "Sister, wherever you run away, I will chase you." When the evildoers began to erode their sanity, and when two faces dressed as women and men appeared in front of Lin Junxiao at the same time - Chen Xiaotong finally discovered that the engagement she wanted to escape the most might be her only way to survive in this world.