In the sea about 30 kilometers east of Modo City, there is an incomparably vast underwater abyss.

It is said that the alliance has sent several expedition teams to investigate it with a deep-submersible exploration vessel, but they all returned without success.

According to public information, the deepest manned diving record of the expedition team has reached a depth of 8643 meters!

Such a depth has already far exceeded the average depth of the flat zone, but it still hasn't reached the end of that sea abyss.

The content of this chapter is being updated...