Living in the rootless black city, the only thing you can do is practice and go out to earn black coins. When it comes to earning black coins, it actually means forming a team to leave the Rootless Black City and go to the void to find the Black Elemental Stone. Black Yuan Stone is the only material for refining black coins. Only by earning a certain amount of black coins can you have the opportunity to leave Rootless Black Stone City on a void ship....