was a powerful warlord in Tosa Province

Tosa Province

is the name of a former province of Japan in the area that is today Kōchi Prefecture on Shikoku. Tosa was bordered by Iyo and Awa Provinces. It was sometimes called .-History:The ancient capital was near modern Nankoku...

, Japan

Japan

Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

. He is the son of Chōsokabe Kanetsugu. His childhood name was Senyumaru (千熊丸).

His father was killed by the Motoyama clan in 1508. Therefore, Kunichika was raised by the aristocrat Ichijō Husaie in Tosa Province. Kunichika was reconciled with the Motoya clan and gathered strength. Kunichika won the Motoyama clan in 1560. However, Kunichika would die not long after, and was succeeded by his son, Chōsokabe Motochika

Chosokabe Motochika

was a Sengoku period daimyo in Japan. He was the 21st chief of the Chōsokabe clan of Tosa Province . He was the son and heir of Chōsokabe Kunichika and his mother was a daughter of the Saitō clan of Mino Province....

. In Shogun 2, it is even said that Kunichika jumped off an imperial palace as a dare, and lived.