Makuhari International School, Tokyo | International Schools Guide

Parents describe MIS as a CIS-accredited Article One school in Mihama-ku, Chiba, with both Japanese and international accreditation, and many graduates moving on to regular Japanese middle schools.
Entry is competitive; one parent said their kid didn't get in, and the school is repeatedly described as the harder of Tokyo-area options to win a place at.
Student body is described as predominantly Japanese, Chinese and Korean, with very few non-Asian students; one teacher account said the school is more bilingual than international in feel.
One parent review on directory sites was sharply negative about a Grade 1 admission decision, saying their six-year-old of non-Japanese descent was rejected on the basis of a 30-minute reading, writing and maths assessment.
Recurring positive line: the school works well for Japanese returnees, dual-nationality and bicultural families and is more affordable than many Tokyo international schools, with fees around 2 million yen a year.

Article One status and Japanese-system pathway. MEXT-accredited and CIS-accredited; many students move on to Japanese middle schools, which parents value.

Cost relative to Tokyo peers. Around 2 million yen a year, which commenters describe as comparatively reasonable for the Tokyo region.

Competitive entry. Multiple parents describe admission as hard to win, with assessment-based rejections at the youngest grades.

Demographic mix. Mostly Japanese, Chinese and Korean students; non-Asian families say the international label is qualified in practice.

Bilingual rather than fully international feel. A working teacher described the school as closer to a bilingual school than an international one, with classroom-level English calibrated to ability.