Gu Leyou's younger brother, thin and delicate-looking with a timid and mild-mannered personality. He feared causing trouble but showed courage when defending his sister against Madam Yang and Gu Haicheng. He was slapped by Gu Haicheng, injuring his forehead, and felt useless after the marriage was decided. He cared for Gu Leyou after she woke up, bringing her warm porridge and tending to her needs.
