Orian's move covered the whole sea area with countless pitch black chains and those chains immediately attacked the people from the navy. Even though each one of the chain was not very useful against a demigod rank powerhouse, it was more than strong enough to kill a bunch of S rankers.
So just like that, in almost no time, almost all the S rankers from the navy side were killed. A few that managed to stay alive were also badly injured and the other pirates made a short work of them. Just like that, with just one move, Orian managed to complete defeat the navy.
As for the two demigods present in the battlefield, both of them were overpowered by the sword dance performed by Mikata. The water magician was unable to hold on for much longer and was killed after exchanging just a few blows. But as the half naked man was higher level than Mikata, he was able to hold on until the end of the sword dance.