Seigakuin Schools seek close cooperation with churches. D Joshi Seigakuin High School has a long tradition of education for peace. Students in their junior year visit either Hiroshima or Nagasaki. Through this experience and through biblical and historical studies they learn about the causes and devastating results of modern warfare. JoshiSeigakuin has also been recognized for its strong program of volunteer service.
Students volunteer many hundreds of hours of service in a wide range of institutions and programs.