A few days later.
Countless powerhouses gathered at Red Port.
On the Red Line beneath Pangea Castle in the Holy Land, Wang Shi had no intention of blasting it apart entirely.
Instead, he planned to carve out a massive tunnel above sea level through the Red Line, turning it into a new safe shipping route.
Just like the enormous underwater opening near Fish-Man Island ten thousand meters below the sea.
Aside from the Red Line beneath the Holy Land, Wang Shi intended to choose two more locations and carve two more Red Line tunnels, linking the North Blue with the East Blue, and the West Blue with the South Blue.
That way, the Four Blues would no longer need to take such long detours.
Back then, the Germa Legion's Snail Ship from the North Blue had taken a full three weeks to climb up the Red Line, cross it, and then climb back down.
Now, as long as these Red Line tunnel routes were opened, ships would be able to sail freely and directly, saving a great deal of time.
Most importantly, every Red Line tunnel route would become one of the World Alliance government's most profitable safe shipping lanes.
Wang Shi remembered that, in his original world, the Strait of Malacca, the Panama Canal, and the Suez Canal had all been immensely profitable strategic locations.
Out of consideration for the Goa Empire, the Red Line tunnel connecting the East Blue and North Blue was set at the section of the Red Line closest to the Goa Empire.
As for the Red Line tunnel connecting the South Blue and West Blue, after Aramaki of the South Blue's Taya Kingdom, along with Kuma and Bonney of the South Blue's Sorbet Kingdom, fought fiercely for it—
It was ultimately placed at a