However, the reason why such a situation did not occur actually was that the parties responsible for circulating low-quality Torai-sen were the Muromachi bakufu and influential families in the central government, explicitly showing that Torai-sen were at the center of the low-quality coins.
そうならなかったのは、むしろ粗悪な渡来銭を積極的に流通させていたのが、室町幕府ら中央の権門のほうであり、悪銭の中心は渡来銭だったことを明示している。