Since the coming from and going to China were never discontinued due to Tenryuji-bune (Heavenly Dragon Ship) and the tally trade (between Japan and the Ming dynasty), a large amount of copper coins were imported, and karamono (things imported from China) were highly esteemed.
天竜寺船、勘合貿易により中国との往来は絶えることはなく、銅銭が大量輸入され、唐物が珍重された。