The Villainous Younger Sister in a Period Novel [Book Transmigration]

My new novel, Practicing Medicine in a Period Novel (Transmigrated into a Book), is now out. Please add it to your favorites~ The wise don't fall in love. The perpetually single... is about to get married young?! After transmigrating into a book overnight, Su Tian became the female lead's awful younger sister. She had rosy lips and a fair complexion, a graceful figure, and was famous throughout the surrounding villages for her beauty. From the start, she was at a matchmaking session. According to the plot, the villainess had to have a pair of awful parents. So her father used decades' worth of acting skills to ruin the matchmaking, while her mother made a scene and, clutching a bundle, announced she was taking her daughter to the army base to find her soldier nephew and get him to introduce her to a suitable man. Newly arrived Su Tian was completely floored. So after all that, she still had to go on a blind date! ** Su Zhenxing was utterly dumbfounded when his aunt and cousin suddenly came running over. He had introduced a fellow soldier to his own sister because she was gentle, virtuous, and good at running a household. What could this cousin do? Make a scene, act shameless, and be educated? Eat, drink, and fight? Just... no. Not suitable! He sneaked a glance at the well-behaved cousin standing beside his aunt. Fair-skinned and sweet, with a particularly lovely smile and a row of little white teeth... she was actually pretty cute. Maybe there really was some fool who liked her type? Su Tian was truly beautiful, after all. Unless you told them, who would know she was lazy, greedy, and shameless?! But Su Zhenxing never imagined that the fool in his mind would be his most irritating rival. Hah! Even if the Su family had to keep its daughter at home for the rest of her life, she would never set foot in the Shen family's house! Shen Zheng: I treat you like family, and you treat me like an outsider?! Big brother, the long-awaited "big brother" has finally arrived! Su Zhenxing: Get lost! Who are you calling big brother? Su Tian: What if there's another possibility? The wise don't fall in love. The perpetually single spend their days... doing research! Notes: 1. Please be civil while reading! 2. The female lead specializes in equipment research. Her career comes first, and romance second. 3. The world is fictional, with some original settings. Theme: Be independent, strong, and self-reliant.