Chapter 378 Ownership Questioning_2

The Black Gold Element possesses an extremely powerful function and can be utilized in various aspects of Dream Island; however, its origin is highly mysterious. Yan Fei had only discovered this one piece on Earth, and once it runs out, there would be no way to replenish it. Thus, Yan Fei was extremely cautious in using the Black Gold Element, always trying to conserve it for fear of over-reliance. If the Black Gold Element were ever to be depleted, the development of Dream Island would fall into difficulty.