https://koudo.org/event/%e4%bc%9d%e7%b5%b1%e7%be%8e%e9%a4%8a%e5%a1%be%e3%80%80%e3%83%97%e3%83%ac%e8%ac%9b%e5%ba%a7%e5%87%ba%e6%b1%81%e3%80%80%e3%80%9c%e7%9f%a5%e3%82%89%e3%81%aa%e3%81%84%e3%81%aa%e3%82%93%e3%81%a6%e3%82%82/2026-06-07T23:14:50+09:00