After the Teibi Yakujo was concluded, the So clan continued negotiations for requesting a reduction in restrictions relating to trading and diplomacy visits, and in 1557 the Teishi Yakujo was concluded.
丁未約条締結後、宗氏は通交抑制の緩和を求める交渉を繰り返し、1557年に丁巳約条が締結されることとなる。