====== E7参考 ======

  * https://zekamashi.net/201802-event/engano-3/
  * http://akankore.doorblog.jp/archives/51584881.html
  * 
  * http://wikiwiki.jp/kancolle/?%BE%B9%B9%E6%B7%E8%C0%EF%A1%AA%EE%B3%B7%E2%A1%A2%A5%EC%A5%A4%A5%C6%B2%AD%B3%A4%C0%EF%28%B8%E5%CA%D3%29%2F%B3%C8%C4%A5%BA%EE%C0%EF#area5