My Green Tea Best Friend Won't Reform [Book Transmigration]

[Completed, jump right in!!] Han Er transmigrated into an old-school campus novel and became the green tea best friend of the heroine: the second female lead, who loved the male lead desperately, caused trouble everywhere, was beautiful and rich, had the city's richest man for a father and a top-tier actress for a mother! Han Er exclaimed: Oh my god, I'm a total winner in life. Who needs the male lead? Being rich is so wonderful, studying is so much fun, so why would I need a boyfriend... Wait!! The new transfer student is so handsome! The students in Class A, Grade 11 first noticed that Han Er, the biggest green tea of them all, had stopped clinging to the campus heartthrob. Instead, she kept blushing at the transfer student. Was she blind? She had such a handsome heartthrob right there... Wait, wait?? The transfer student is pretty handsome too? The campus heartthrob roared: Look at me! Aren't I supposed to be the male lead?? The transfer student smiled: Maybe I am. I recommend my upcoming novel, I'm the Green Tea Older Sister [Book Transmigration]. Please add it to your reading list~ Che Mu transmigrated into a book. The heroine was the biological daughter who had been kidnapped and sold. Her wealthy biological parents found her when she was sixteen, and she became the apple of everyone's eye. Her rich father doted on her, her award-winning actress mother adored her, her brothers cherished her, and her CEO fiancé loved her. She lived the kind of life all women envied. And Che Mu became the biological daughter of the heroine's adoptive parents, the heroine's green tea stepsister. On the surface, the green tea older sister gave the heroine advice: