Edited by Aelryinth
Blue waves rose and fell endlessly on the vast sea.
In the past, the waters had been conquered by humans. Ships would traverse the oceans busily, connecting the different continents.
Countless marine products were developed by humans. Some of them became industrial materials, some became delicacies on their tables.
It could be said that there weren't many secrets left in the seas of Mercury for humans to discover, before the arrival of the new age. Only outer space was left to conquer.
However, following the arrival of the new age, all kinds of powerful exotic beasts occupied the waters. Almost all ships were destroyed by those powerful exotic beasts. Even the aircraft carriers and submarines, great weapons of war, weren't spared destruction.
At present, the vast and endless seas had totally become a paradise for exotic beasts.