The Crying Mother of Bloodbath

Even if spirit qi professionals utilized special feys to breathe underwater, the effects were limited.

The water world was an endless sea that had countless water world dimensional lifeforms swimming in it.

Spirit qi professionals were unable to venture too deeply into the water world. Once they ran out of oxygen, even the strongest spirit qi professionals would have to stay in the water world forever.

The bodies of water world dimensional lifeforms were useless to spirit qi professionals. If the water world dimensional lifeforms were removed from the water world, they would become burdens to the spirit qi professional.

The stench of rotting water world dimensional lifeforms was unbearable.

The subterranean world was much stronger than the water world. It had a large amount of metal spiritual ingredients which could be used to create different items and nurture feys.