C1701 Can You Afford to Offend Him?

Lee Yifann smiled. Actually, using pills to prolong one's life wasn't easy.

Generally speaking, only pills that had reached the level of Spirit Dan could have such heaven defying effects.

Of course, there were also some special medicinal pills that could extend one's lifespan.

What he wanted to refine was a type of pill called the Crane Fetal Dragon Tiger Pill