Lin Yanran time-traveled into a book, becoming the Marquis's wife who was angered to death by her scumbag husband raising a mistress. Rolling up her sleeves, she prepares to empty the private treasury and bring the mistress into the mansion to properly "wait upon" her, only to find that her eldest son, Chu Yunxuan, seems a bit unusual. This cheap son has an aged look in his eyes and seasoned methods, offering only a single sentence whenever major matters arise: "Mother, rest, leave things to your son." From then on, Lin Yanran's style changes to: Xuan'er, manage your younger brother; Xuan'er, manage your father. She lies flat to watch the show, casually dumping all the messy burdens back onto the scumbag's head. While the heroine is still contending for jealousy over the position of concubine, Lin Yanran has already relied on her son to lie flat and become a winner in life.