In addition to playing the role of a social wife, concubines engaged in other public activities during the Republican period. Chapter 4 examines their presence in two types of communal spaces: public schools and progressive women’s organizations. These institutions witnessed the buildup and precarious resolution of tensions and conflicts surrounding attempts to exclude concubines from membership. Major incidents were publicized in contemporary newspapers, garnering broader social attention and providing an essential source for uncovering attempts to exclude concubines and for analyzing how the issue was framed, debated, and resolved (or not). The chapter first examines incidents in public schools, where strikes were organized to protest against those students and administrators who were concubines. These incidents reveal deep anxieties about the concubine’s tainting influence and the politics of women’s virtue within campus communities. Next, it analyzes the debates and conflicts surrounding concubine membership in progressive women’s organizations, revealing previously overlooked divisions rooted in class hierarchy and sexual morality within Chinese women’s liberation movements.