C1389 evolutionary method

After Luo Yu returned to the Sword and Profound Palace, he once again entered into bitter cultivation.

While he was cultivating the Void Decimation Sword Art, he needed a large number of boundary stone. Under the pained gaze of the resource Hall Master, Linghu Qianyu gave Luo Yu twenty pieces of level eight boundary stone and more than forty pieces of seventh grade boundary stone.

However