The Japanese fleet arrived at Busan without any incident and rested overnight in its harbor. In the morning Konishi Yukinaga and Sō Yoshitoshi attacked Busan and a subsidiary harbor fort called Dadaejin.
Konishi Yukinaga's first attack was repelled by Yun Heungsin. The second attack came at night when Japanese forces filled the moat with rocks and lumber under cover of gunfire before scaling the walls using bamboo ladders. The entire garrison was massacred.
The Japanese First Division rested at Busan overnight and then advanced towards Hanseong.
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