C293 Reentering the other world--the wonderful medicine shop(2)

The old man nodded. "Many thanks, young master!" He stretched out his hand. He was as thin as a match.

Long Feiyu gently placed his hands on the door of the Blood Vein to check carefully. As expected, there was some light energy moving inside his body, even though it was very light.

But obviously there are still remnants. Unknowingly, he passed over a thread of vital energy