This castle was constructed by Shimazu Iehisa in 1601. In 1600 Shimazu Yoshihiro, the father of Iehisa, was defeated at the Battle of Sekigahara as a daimyo of the western alliance, by the eastern alliance led by Tokugawa Ieyasu. This castle was built after the defeat and in the severe political tension with Ieyasu.
This castle is notable for the small scale and fairly poor quality as a main castle of one of the richest daimyo in Japan. It is said that Shimazu was afraid of giving the Tokugawa an excuse to attack Shimazu territory by making too large a castle.