Some Korean residents around Sanpo pretended to have sold their farming land to kokyowa, and they transferred their land's ownership to some Japanese nominally in order to cheat the payment of tax imposed on their farming land.
三浦周辺住民の中には田畑を恒居倭に売却したことにし、名義人を日本人に書き換えることで田租の納税回避を行う者が出現した。