Jinsenji Bungo served as a bushō during the Sengoku period. He was a retainer of the Chōsokabe clan. He had the name of Yasukore while Bungo was derived from his title of Bungo-no-kami, or Governor of Bungo.
Bungo was born as the son of Jinsenji Kamon. The Jinsenji were a small-scale family of means in Tosa Province. During the Sengoku period, the Jinsenji were under the command of the Motoyama clan, but, in the era of Bungo’s father, surrendered to Chōsokabe Kunichika and came under the command of the Chōsokabe.
Bungo taught military arts to Chōsokabe Motochika – the eldest son of Chōsokabe Kunichika and successor to the clan. Bungo provided instruction to Motochika in the handling of the spear prior to Motochika’s first experience in war at the Battle of Nagahama in 1560. Later, however, Motochika suspected Bungo of plotting a rebellion and, upon his orders, Bungo was murdered along with his son by Nakajima Chikayoshi.