An increased number of kokyowa (Japanese people living on the Korean Peninsula who had no intention of becoming naturalized Koreans) living in Sanpo also caused various problems, and the Korean Dynasties started to take a harsh stance towards them (see the "Increase in Number of Kokyowa" section).
また三浦居住の恒居倭の増加に伴い様々な問題が生じ、朝鮮王朝は恒居倭に対し強硬な姿勢で臨むようになる（恒居倭の増加節参照）。