The news that Soon-shin locked up the emissary and went off to fight a battle stuns the royal court. The Westerners move to charge him with high treason, and Yu Sung-ryong turns in his resignation. Kwang-hae is frustrated and sad to see his father Sonjo forsake his two most faithful subjects. The Japanese acquire information that Soon-shin has directed all of his forces to Wekyo. It is hard to believe Soon-shin would make this move, but Wakizaka chooses Noryang with the swift-flowing current to get to Wekyo. Soon-shin's fleet waits in Noryang for the Japanese to pass through the channel. Once the first ship passes through, Soon-shin begins his attack. The enemy changes its course, but Soon-shin's fleet is right behind them. The enemy fleet retreats, but Wakizaka will not give up until Soon-shin is dead.
—https://www.yidio.com/show/the-immortal-yi-soon-shin