The only son of the Xu family, three years older than Yu Li. The Xu family has a long-standing friendship with the Yu family due to the older generation. He and Yu Li were childhood friends, but Xu Baicheng has impure intentions toward Yu Li and lacks a sense of boundaries, often attempting physical contact that makes Yu Li uncomfortable. He maintains a gentlemanly demeanor in front of Yu Li but becomes angry when blocked by Lu Qing. He is described as one of Jiang Cheng's playboys.