The so-called 'returning to the ruins', also known as the return of the illusory sea, is a bottomless abyss beyond the four seas of this world.

It is separated from heaven and earth, but it is different from the cave heaven blessed land, maybe it is the other side of the world, anyway, except for the group of ancient monks who disappeared, no one knows its true origin.

What can be known is that in ancient times, in order to facilitate the war, those top monks sank many world fragments in it.

On the one hand, it is for

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