The Korean fleet scattered in a night storm and the main portion blundered upon the Japanese fleet the next day. On seeing the Japanese fleet, Won Kyun panicked and retreated. He beached his boats and took to the land but the Japanese overtook and beheaded him. The Korean fleet scattered was mostly destroyed.
With the news of Won Kyun's disastrous defeat, a loyal advisor of the king called for Yi Sun-Sin's reinstatement. Fearing for his country's security, the king hastily reinstated Yi Sun-Sin as the naval commander. In spite of his previous unfair treatment, Yi immediately set out on foot for his former base at Hansan. As he traveled, he met scattered remnants of his former force. By the time he arrived at Hansan, he had only twelve boats but no lack of men, for the people along the coast had flocked to him when they heard of his reinstatement. Yi drew up his fleet of 12 boats in the shadow of a mountain on Chin-Do Island off the Myongyang straits.
One night his scouts reported the approach of a Japanese fleet. As the moon dropped behind the mountain, the Korean fleet of 12 ships was shrouded in total darkness. When the Japanese fleet of 133 ships sailed by in single file, Admiral Yi's forces gave a large shout and fired point blank. Yi employed one of his tactics, the use of two-salvo fire, which resulted in a continuous barrage causing the Japanese to think that they had run into a vastly superior force. Their fleet scattered in all directions in a total panic. The next day several hundred more Japanese ships appeared and Admiral Yi, fearless as ever, made straight for them. He was soon surrounded, but he sank 30 Japanese boats. The remainder of the Japanese fleet, recognizing the work of the famous Admiral Yi Sun-Sin, turned and fled. Admiral Yi gave chase, decimated the enemy, and killed the Japanese commander Madasi.