Summary After the right officers were put to right duties, things are starting to settle down in the Left Cholla Naval Base, and the military training becomes increasingly vigorous and intense. The most vigorous training of all is the artillery training. Cannons are a powerful weapon that can be dangerous both for the enemy and the ally, so Chung Oon who is in charge of artillery training is especially tough with his men. Yoon Dusu who waits in exile for his chance to make a comeback appeals to the king to notify the Ming court about Japan's proposal to attack Ming together and prove Chosun's loyalty to the emperor of Ming. He also tells Won Kyun that his time will soon come and to prepare to go to the southern front. Vigorous and dangerous artillery training continues on the beaches of Left Cholla Naval Station. Chung Oon pushes his men too hard causing an unfortunate accident.

• Action
• War
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• History