Hosokawa Tadaoki
The Japanese general Ukita Hideie and Hosokawa Tadaoki agreed on taking Jinju castle because if the Japanese captured it, it would open up a new road to Jeolla, and they would be able to attack Gwak Jae-u's guerilla forces hiding in the area. Jeolla was also place for plenty of loot. Ukita also agreed to recapture Changwon, a small fortress that led to Jinju castle. Therefore, an army of 20,000 men to recapture Changwon and Jinju set out.