dai-26-kai-zenkoku-taikai-no-go-hokoku-%e7%ac%ac26%e5%9b%9e%e5%85%a8%e5%9b%bd%e5%a4%a7%e4%bc%9a%e3%81%ae%e3%81%94%e5%a0%b1%e5%91%8a-report-on-the-26th-national-convention-7yjbdmht