Students live in houses of 18 to 28, sharing two- or four-person bedrooms with roommates from different countries and backgrounds. Each house has a common area, a kitchenette, and free laundry facilities.
Houses are mostly single-gender, though a blended housing option is available with written parental consent. In the blended house, rooms are assigned by self-identified gender, with access to both gender-neutral and single-sex bathrooms and showers. Students indicate their preference as part of the admission onboarding process.
Each house is overseen by House Mentors, faculty members who support students in the residential setting. Residential Advisors (RAs) are students selected to help keep daily house life running and serve as a first point of contact for minor issues.
Students develop and implement their own house management systems, taking real responsibility for how their shared space functions. Much of the leadership development at ISAK happens here: in the negotiation, decision-making, and accountability of everyday life together.
See what boarding school life is really like, from the role of advisory to an ordinary day from wake-up to lights out.
Students are supported by House Mentors, advisors, nurses, counselors, and peer supporters, who work together to ensure students have what they need to thrive. On-campus healthcare is available through the Health & Wellness Center, with access to the broader Japanese healthcare system when needed. Counselors offer individual sessions and workshops to help students develop coping strategies and build resilience.
For full details on our safeguarding program, policies, and the team responsible for student safety, visit our Safeguarding & Wellness page.

Each student belongs to a small advisory group that meets weekly throughout the year. Advisory is non-graded and intentionally informal, a space to connect, reflect, and build relationships outside of academic pressure.
Groups are led by a faculty advisor. The group plans their own activities and goals. The program is built around five principles: building relationships, encouraging open dialogue and reflection, supporting each other’s growth, connecting students to academic and social resources, and developing leadership skills together.
Advisory is one of the ways ISAK ensures no student moves through the school without someone paying close attention and supports positive relationships with a trusted adult.
