Relying on the fact that men and women have different characteristics and thus different perspectives and demands, most of the progressive feminist scholars draw the same conclusion, that women cannot have their voices heard unless they have their own separated platform. Japan is a significant example, as regardless of women’s engagement in the students strike in the late 1960s, women were never considered equal to their male counterparts but as only onigiri dukuri (rice ball makers). This explains the rise the of the progressive social justice movements in the 1970s exemplified in Uman ribu (women’s lib,) where it was a women-only platform and completely isolated from other movements led by men. However, the anti-nuclear movement that emerged in 2011 in Japan, has introduced a different paradigm of women’s activism where women called for their rights in a non-feminist platform that included a multitude of coalitions with completely different agendas. Drawing upon the mainstream literature of Japanese feminism and collective action theories, this paper will investigate the characteristics of women’s movements in Japan in post 3.11 and how they create a new paradigm that is different in nature and structure than the conventional radical feminist movements in post-war Japan