Teacher Chen is the grade head teacher at the school where Gu Beilu and Yu Xi study. He is the educator who handled the matter of Yu Xi's special admission, granting extra points for special skills that allowed Yu Xi to enter Class 1 despite not having attended kindergarten in China. When Li Yiming's parents insisted on an explanation about Yu Xi's admission, Teacher Chen spent two hours explaining the situation but was unable to satisfy the Li family's concerns. He is professional, patient, and diplomatic in his dealings with parents, feeling a sense of relief when the Yu couple finally arrived at the school office after the lengthy explanation. He represents the school administration's effort to maintain fairness and transparency in student admissions.