The previous page is sending you to https://www.oac.ac.jp/oacnews/post4347/attachment/%E9%82%A3%E8%A6%87%E6%A0%A1%E9%A7%90%E8%BB%8A%E5%A0%B4%E3%83%9E%E3%83%83%E3%83%97/.

 If you do not want to visit that page, you can return to the previous page.