His advanced mathematical ability was highly regarded, and he single handedly handled finances, managed TOYOTOMI's kurairichi (where the payment of samurai was handled), and implemented TOYOTOMI's nationwide land survey (Taikokenchi).
高い算術能力を買われて、財政を一手に担い、豊臣氏の蔵入地の管理、太閤検地の実施に当たる。