C548 A Small Gift(3)

Seeing the surprise on Hsu Xiaoxiao and Huang Bingtian's faces, the corner of Xian Yuqi's mouth curled into a smug smile.

Without any intention to keep them in suspense, the black-clothed old man began to explain.

"To put it simply, astral energy is similar to some kind of energy."

"Energy?"

"That's right