Net Sales
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FY2025
67.15billion JPY
Successful applicants
Successful applicants in 2026
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The University of Tokyo
770Z-kai students
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Kyoto University
637Z-kai students
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WASEDA University
1,487Z-kai students
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Keio University
991Z-kai students
Number of Z-kai Students, Schools, Offices
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Number of Z-kai Students＊1
233,064students
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Number of Z-kai Schools＊2
839schools
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Number of Offices＊2
64offices
＊1The total number of students who used our correspondence education services and those who used other services, in 2025.
＊2as of Mar.2026
Number of Employees＊3
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Full-time employees
2,710
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Number of Employees
14,984
＊3as of Mar. 2026