Female student in Shen Sangyu's Physics class at Yan University. She wears glasses and speaks in a weak voice. She recognized Shen Sangyu as the national top scholar and was very excited. She asked Shen Sangyu for study tips, and Shen Sangyu advised her to practice more exam questions. Lu Siwen benefited from Shen Sangyu's advice, realizing she had not done enough exercises before the exam.
