Authentic. Shanghai Daoshengtang Wing Chun is authentic, Ruan Cen is the inheritor of Wing Chun, and is included in the list of inheritors. Every year, he also went to Guangdong from Ye Wenbu to practice Wing Chun boxing many times, which is a collection of the strength of many families. Shanghai Daoshengtang Wing Chun Boxing Hall was founded by Bei Caizhu, a direct descendant of the traditional wing Chun Boxing. The purpose is to pass on the traditional martial arts wing chun quan in the form of small class professors and internet micro-classes.