The increased population of kokyowa caused various problems such as the occupation of fishing grounds by kokyowa, the pirate-like behavior by kokyowa, the consistent illegal trading accompanied by a collusive relationship between kokyowa and Koreans, tax evasion by some Korean who lived in the vicinity of Sanpo, and the emergence of Korean pirates.
恒居倭の増加に伴い、恒居倭による漁場の占拠、恒居倭の倭寇化、密貿易の恒常化及び恒居倭と朝鮮人の癒着、三浦周辺朝鮮人の納税回避、朝鮮人水賊の活発化など、様々な問題が噴出する。