After the victory in Myongryang, Soon-shin and his fleet make a long march along the western coast. It is to declare that the command of the sea belonged to Chosun and to break the morale of the Japanese army. Unwilling to accept that Soon-shin is the one who turned the tide of the war around, Sonjo gives credit to the Ming troops instead. When Ming emissary Yang Ho praises Soon-shin for his miraculous feat, Sonjo grants Soon-shin a pardon for his past crimes. With his will for conquest crushed once again by the humiliating defeat in Myongyang, Toyotomi Hideyoshi orders Wakizaka Yasuharu to slaughter Soon-shin's family. Wakizaka would rather fight a fair fight against Soon-shin, but he heads for Soon-shin's home in Ahsan.
—https://www.yidio.com/show/the-immortal-yi-soon-shin