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JINIS (Jinseki International School) — Listed as a High School, but It's Actually a Full-Boarding Primary School

Hiroshima, Japan

In reality, this is a full-boarding Grade 1-6 primary school that opened in April 2020 — the legacy directory's "senior high school, opened 2022" description was wrong on both counts.

Researched by William Prep from published sources. Not yet verified by the school. — Last reviewed by William Prep: 2026-09-24

Researching this school surfaced four distinct errors in the legacy William Prep directory. First, the domain the directory listed (jinseki-is.com) no longer resolves — the real site is jinis.jp. Second, the school opened in April 2020, not 2022 as the directory claimed. Third, this is not a senior high school (Grade 10-12) but a full-boarding primary school (Grade 1-6). Fourth, the directory's claim of "IB candidacy underway" wasn't found anywhere on the school's own site.

At a Glance

School Type	Full-boarding primary school (Grade 1-6)as of: 2026-09-24
Opened	April 2020as of: 2026-09-24
Official Website	jinis.jpas of: 2026-09-24
IB Status	No mention found (not confirmed) not publicly confirmedas of: 2026-09-24

Fees: A Mix of Primary and Third-Party Sources

The ¥50,000 application/exam fee was confirmed directly on the school's own admissions page. But the major fee items — enrolment, deposit, tuition, boarding — couldn't be traced to a school-issued fee PDF this session and rest on third-party reporting only. The first-year total works out to ¥8,910,000, but that figure hasn't been cross-checked against the school's own fee schedule.

William Prep’s Analysis

This school accumulated more distinct legacy-data errors than any other in this batch: the domain, the opening year, the school type, and the IB status were each independently wrong within a single directory record. A full-boarding primary school is a fundamentally different consideration than the senior high school a family might have been searching for — a concrete illustration of how much this kind of error can matter in practice.

University Entrance Eligibility in Japan

School-accreditation route	No not publicly confirmedAs a primary school, university eligibility does not apply at this stage.
Student-qualification route (IB, etc.)	No not publicly confirmed

JINIS is a primary school (Grade 1-6), so university eligibility questions don't apply at this stage.

Fees & Estimated First-Year Cost

academic year: 2026

Application/Exam Fee	¥50,000
Enrolment Fee	¥500,000(not independently confirmed)
Facility Fund (non-refundable, reported)	¥100,000(not independently confirmed)
Deposit (refundable, reported)	¥1,000,000(not independently confirmed)Reportedly refunded upon withdrawal.
Tuition (annual, reported)	¥5,290,000(not independently confirmed)
Boarding Fee (annual, reported)	¥1,610,000(not independently confirmed)
Facility Management Fee (annual, reported)	¥240,000(not independently confirmed)
Materials Fee (annual, reported)	¥120,000(not independently confirmed)
Estimated First-Year Total	¥8,910,000

Includes: application, enrolment, deposit, tuition, facilities, other — Excludes: The application fee is only incurred if the family proceeds, but is included here as part of the first-year outlay. The ¥1,000,000 deposit is reportedly refunded on withdrawal but is included here as a first-year cash outlay. This total rests on third-party reporting, not the school's own published fee schedule — it wasn't cross-checked against a school-issued fee PDF this session.

What Makes This School Distinctive

A full-boarding primary school

Located in Jinsekikogen, Hiroshima; blends the International Primary Curriculum with the Japanese national curriculum

Confirmed on the school's own site.

Since it's full-boarding, fit with residential life matters more than geographic proximity.

Admissions

Cycle

未確認（受験料¥50,000のみ確認）

What Japanese Families Should Know

Who Might Find This School a Good Fit

Might suit — Families considering full-boarding life for a primary-school-age child

Might not suit — Families looking for a school for a high-school-age child (this school is a primary school)

William Prep’s Analysis

This school demonstrated how many distinct errors can accumulate within a single legacy directory record — domain, opening year, school type, and IB status were each wrong independently. It's a strong validation of treating the legacy directory strictly as a research starting point rather than a source of truth.

Questions to Ask the School

1.What are the current, exact enrolment, tuition, and boarding fees?
Why this matters: Beyond the application fee, the major fee items rest on third-party reporting only — not cross-checked against the school's own fee schedule this session.
2.Is IB candidacy still in progress?
Why this matters: The legacy directory described IB candidacy in progress, but no mention of the IB was found on the school's own site.

Sources & Verification

Home (English) — Jinseki International School (JINIS)primary source · as of: 2026-09-24Fetched directly. Confirms: founded April 2020 (not 2022 as the legacy directory stated); Article 1 status, MEXT-accredited; a full-boarding PRIMARY school (elementary, not the high school the legacy directory described); blends the International Primary Curriculum (IPC) with the Japanese curriculum; located in rural Hiroshima Prefecture (Jinsekikogen). No mention of IB candidacy anywhere on this page, contradicting the legacy directory's "IB planned" claim. The school's real domain is jinis.jp — the legacy directory's listed domain (jinseki-is.com) does not resolve.
入学案内 — Jinseki International School (JINIS)primary source · as of: 2026-09-24Fetched directly. Confirms application/examination fee ¥50,000 and full-boarding structure (全寮制フルボーディング). Other fee amounts (tuition, boarding, enrollment, deposit, facility) are held in a separate downloadable PDF not retrieved this session — see jinis-fees-third-party for third-party-reported figures.
Search synthesis on JINIS fees — Multiple (search aggregation, incl. eltschool.jp)third-party source · as of: 2026-09-24Reports, for 2026: enrolment fee ¥500,000 (one-time) and refundable deposit ¥1,000,000 (one-time), plus annual figures of tuition ¥5,290,000, boarding ¥1,610,000, facility management ¥240,000, facility fund ¥100,000, and materials ¥120,000 — a combined annual total near ¥7.71M reported elsewhere. Not confirmed against the school's own fee PDF (linked but not retrieved) directly this session; the ¥50,000 application fee is separately confirmed via jinis-admission.

Last reviewed by William Prep: 2026-09-24

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