Makuhari International School, Tokyo

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.