C151 Volunteer Coach Grandpa Mao

Chen Yaoyao hesitated for a moment before handing Hsu Dan's program list to Vice Principal Lee, asking her to discuss it with Principal Qian.

"Martial arts are too dangerous," she said. "I know the coach she hired—it's that guy, Grandpa Mao, who caused a scene in the office the other day."

Indeed, Grandpa Mao's full name is Mao Shugen.

Vice Principal Lee's expression changed