At that moment, Huo Yuhao gained a much deeper appreciation for the value of the giant starlight blue sapphire Storage Soul Tool in his hand.
Had it not been for the Undead Semi-Plane—a space that had no business existing on Douluo Continent—this massive starlight blue sapphire would have been the ultimate tool for smuggling rare metals.
To quietly transport tens or hundreds of thousands of tons of rare metals from the mines to the national border for handover would be utterly impossible unless you possessed countless spatial storage devices.
Chapter 510