Wang Sheng is a working student present in the Nuoding Academy and the former boss of Room Seven.
He is a young boy with a rough face and spiky black hair.
Being the boss of Room Seven, which consisted of working students he was imposing. He took on the bullying of other Academy students. He has a good personality as he welcomes the new student to a treat at the cafeteria knowing that they might not have much money.
He meets up with Tang San in the Nuoding Academy, and immediately challenges him to a duel as it is the custom of Room Seven. After losing against him, he makes Tang San the boss of Room Seven, although within a few minutes Xiao Wu becomes the boss instead.
He defeats Liu Long in a battle thanks to help of Tang San, after Xiao Wu had challenged the seniors of the academy for bullying the students of Room Seven. He later graduates from the Nuoding Academy.