North of Crystal City.
Currently, the waves of the sea were calm, no abnormality could be spotted. But, all of that was just temporarily.
The calm sea suddenly began churning as if it was being stirred by someone. And not long after, a whirlpool was created. Although the whirlpool was not that big, but still, it was able to cause the calm sea to suddenly become turbulent.
The Whirlpool continued expanding from time to time, and not long after, it became a big one, to the extent that it suddenly began extending to the shore of the sea, eating away at the beach.
After a few minutes, the water suddenly began retreating into the sea. And in no time, the size of the beach had already been expanded by a few hundred meters, while the tide of the sea plummeted.
