However, he was refused entry because the Ming dynasty in those days determined Japan as 'a country of one tribute in ten years' (a country which could be allowed the tribute trade once in ten years).
ただし、当時の明側では日本を「十年一貢の国」（十年に1度しか朝貢貿易を許可しない国）としていたため入国を拒否された。