Lu Yan: the heroine.Beautiful female anesthesiologist.After breaking up with her high school boyfriend Jiang Chengyi, she concentrated on studying hard, graduated from S Medical University with honors, and then stayed at the S University Affiliated Hospital to work.In high school, he used to have a lively and high-profile character. After the mysterious death of his friend Deng Man, he was hit hard and his character gradually became introverted.