While Xavier did missionary work in Kagoshima, he liked to debate about religion with his friend Ninjitsu, who was the chief priest at Fukusho-ji Temple.
ザビエルは鹿児島で布教する日々の中で、福昌寺の住職で友人の忍室（にんじつ）と宗教論争を行う事を好んだ。