廢墟 https://yoshisecond.hatenablog.com/entry/2023/08/28/185100 建物 https://agedashitohfu03.web.fc2.com/building/building.html 【BGM】異國のシグナル lei https://dova-s.jp/bgm/play9804.html
http://www.nicovideo.jp/watch/sm43686531
