251. Show cards

Lu Li licked his gums, where two new teeth were just poking through, pushing out the old ones.

And the other teeth also wobbled to varying degrees, ready to be replaced soon.

Teeth are the extension of bones; this condition was precisely the sign of his body transitioning to the "Blood Exchange" realm!

Lu Li initiated Internal Vision and carefully sensed his spine with his spirit...

"Indeed, Refining Marrow has become like frost!"

After continuous refining twice a day for 10 days, most of his spinal marrow had become crystal clear, like frost and snow.

In a few more days, once all the spinal marrow is refined like this, it will be—Refining Immortal Bone, shedding the mortal body, ascending to the "Blood Exchange" realm!

With Internal Vision to assist, this breakthrough was rather smooth.

However, there was also a drawback— the speed was so fast that it made his foundation somewhat unstable.