|Preparing for the Japanese attack, Admiral Lee Sun-shin concentrated on building the Turtle Boats. In the year of Imjin, April 13th, as Busan, Dongrae, Yangsan, and Wuljin all fall to the enemy, Admiral Lee goes to war and is victorious at the great battles of Mokpo and Hansan ocean. The next year, at the age of 49, Admiral Lee is appointed Commander of the entire navy. He moves his military camp over to Hansan and puts all his might into expanding the army. Due to disputes among political parties and Won-gyun's tricks, Admiral Lee is thrown in jail. In the year of Jeongyu, July 5th, the Japanese army attacks again. Admiral Lee is released from prison and serves in the war as a commoner. In September, he takes 12 turtle boats and makes a sweeping victory. Toyotomi Hideyoshi, who began the Imjin invasion, is killed. Admiral Lee has his greatest fight at the No-ryang strait.