Reducing the number of Jushokunin (Japanese given Korean government post by the Yi Dynasty Korea) and Jutoshonin (Japanese given Korean government evidence called 'Tosho' to be granted special privileges in trading) by re-examining them and disqualifying those who were in name, but not in deed.
受職人（李氏朝鮮から官職を授かった日本人）及び受図書人（「図書」と呼ばれる通交許可証を持つ日本人）に対する再審査を行い、実態の伴わない者の資格を剥奪してその人数を減らす。