Kimura was born into a Christian family in 1565. His grandfather was the very first Japanese convert baptized by the missionary Francis Xavier. Kimura's family background and fluency in Japanese would prove to be valuable assets in his later ministry.[1]
Drawn to a life of religious service, Kimura entered the Society of Jesus in 1582. He undertook his studies in Japan at institutions run by the Jesuits before traveling to Macau for theological studies. In 1601, Kimura's journey culminated in his ordination as a priest in Nagasaki as the first Japanese Catholic priest, marking a significant milestone for the Catholic Church in Japan.
Kimura's fluency in Japanese and cultural understanding made him adept at navigating the challenges faced by Christians during the period of persecution under Tokugawa Hidetada. He could effectively disguise himself as a soldier, merchant, laborer, or even a physician to visit Christian households and deliver the sacraments to those imprisoned for their faith. This clandestine ministry earned him the attention of the authorities, who actively sought his capture.[citation needed]
Despite efforts to remain hidden, Kimura was betrayed by a servant and apprehended in 1621 alongside his companions. Imprisoned in Suzuta Prison, he found himself reunited with fellow Christians, including Father Carlo Spinola. Ultimately, Kimura was sentenced to death by burning at the stake. He was executed during the Great Genna Martyrdom on 10September 1622.[2]
