Many? A lot!
So far, Lu Yu has only killed demons at the Tongshen Realm four times, and the first three were all only at the first level of the Tongshen Realm.
Lu Yu wasn't concerned about how much experience he gained; his mind was focused on the original essence left behind after the demon's death.
The dissipated essence was bound and condensed by Lu Yu's soul power into a mass, but just as he absorbed the original law essence into his soul, three Tongshen Realm demons appeared in front of him.
In such a situation, he had no time to refine the essence. Storing it in the soul could only slow down the rate of dissipation but couldn't stop it.
Facing the three Tongshen Realm beings, he couldn't spare attention to refine the essence. Could he just waste the hard-earned law essence?
Lu Yu was a bit unwilling, knowing there was still a way to avoid wasting this essence.
