Osaka Expo https://koputokiryo.com/%e3%80%90%e8%8b%b1%e8%aa%9e%e3%81%a7%e6%9c%80%e6%96%b0%e8%a8%98%e4%ba%8b%e3%82%92%e8%aa%ad%e3%81%bf%e4%b8%8b%e3%81%97%e3%80%91%e5%9c%b0%e5%85%83%e8%87%aa%e6%b2%bb%e4%bd%93%e3%81%af%e5%a4%a7%e9%98%aa/osaka-expo/