Rather than wait for the Japanese offensive, Kim decided to make a surprise night attack with a small contingent, after observing that Japanese camp security was lax at night. It took the Koreans longer to cross the river in darkness than anticipated, and the actual attack did not occur until near dawn. Initially successful, the Koreans managed to kill several hundred of the enemy before the Japanese realized what was happening. Kuroda Nagamasa counterattacked, pushing the Koreans back to the river. However, at the riverbank, the Korean army found that their boats were gone, the boatsmen having fled on hearing Japanese gunfire. Unable to escape across the river, the Koreans retreated upstream where the river was shallow enough to ford. This showed the Japanese how to ford the river to get to the city. Realizing that the Japanese attack was coming, Kim had his remaining men sink their cannon and arms into a pond to prevent them from falling into the hands of the Japanese, and fled north to
Sunan. The Japanese crossed the river on 24 July and found the city completely deserted. Suspecting a trap, Konishi and Kuroda sent scouts to a nearby hill to confirm before entering the empty city. Within the city's warehouses, they found seven thousand tons of rice, which would be enough to feed their army for several months. ==Aftermath==