// ----- ----- ----- Method ----- ----- -----
 public ReignWindowManager(ReignManager manager, Form owner)
 {
     _owner = owner;
     _reinManager = manager;
     Main = this.CreateReignWindow();
     var result = MessageBox.Show("ゲームを開始します", "確認", MessageBoxButtons.OK);
     StartGame();
 }
 private ReignWindow CreateReignWindow()
 {
     var w = new ReignWindow(this._reinManager);
     w.WindowState = FormWindowState.Maximized;
     w.Show(_owner);
     return w;
 }