public IEnumerator WaitMasterDataDownload()
    {
        MasterDataMng manager     = MasterDataMng.Instance();
        int           downloadNum = manager.GetMasterDataDownloadNum();

        this.progressBar.gameObject.SetActive(true);
        while (!manager.IsFinishedGetMasterData())
        {
            this.SetProgressBar((float)manager.GetMasterDataProgress(), (float)downloadNum);
            yield return(null);
        }
        this.SetProgressBar(1f, 1f);
        yield return(new WaitForSeconds(0.25f));

        yield break;
    }