During this period the Ming Dynasty replaced the Yuan Dynasty, uniting China and sought Japan to take countermeasures against the wako and to bring tributes to the Ming Dynasty from Muromachi bakufu (Japanese feudal government headed by a shogun).
この間に中国では元に替わって明が中国を統一し、対日政策として倭寇対策や朝貢を室町幕府に求めるなどした。