Xu Yan's older brother and Gu Jingchen's closest comrade. He died two years ago during a dangerous mission in northern Myanmar. Before his death, he asked Gu Jingchen to take care of his younger sister and hoped Gu Jingchen would marry her. His grave is located on a mountain in Nancheng, and his death remains a painful thorn in Gu Jingchen's heart.
