adami return to amakusa in kyushu, japan, in july 1618, with several japanese monks and remained in oyano (now kami-amakusa) until 1619. however, persecution in kyushu had become so severe that he went to oshu in 1620, the northeastern part of honshu (japan’s main island), where he engaged in missionary work with yama. adami lived at the seminary of inawashiro, near wakamatsu, the capital of aizu in oshu. inawashiro was ruled by echigo (sadatoshi) oka, a zealous christian hailing from kyushu who had been a servant of leo ujisato gamo, a christian feudal load in aizu. pope paul v sent a statement of encouragement to the christians in japan that reached aizu the same year. seventeen christian leaders in oshu including paul chozaemon shibayama, joam kiuemon omori, syusui nakamaki, and sandaiyu sakamoto sent a letter of thanks to the pope in 1621.