SOFIS stands for the beginning letters of each of the five Sacred Heart schools in Japan: Sapporo (Sapporo), Obayashi (Kobe), Fuji (Shizuoka), ISSH, and Sankocho (Tokyo). A few students from each school are selected to participate in a workshop that is held every year during the summer break at one of the schools. The workshop aims to deepen the bonds between the Sacred Heart students in Japan and to provide an opportunity for students to consider their ways of contributing to the society.

Each year, a current global issue is set as a theme for the workshop. Students must deepen their knowledge on the issue by giving presentations, listening to several guest speakers and visiting a company, event or any other organization related to the theme. It is also a challenging experience for students at ISSH as the workshop it held in Japanese; Therefore, students are encouraged to develop their Japanese skills and learn more about the culture of their host country, Japan. This annual workshop provide students with a valuable experience and education which they can bring back to their school and act upon their newly attained knowledge.

(Last summer, 4 students visited Fuji Sacred Heart to learn about climate change and global warming)