Douluo's Auxiliary Upgrade System

Traveling through the Douluo world, at the beginning of the plot, Lin Feng awakens the auxiliary upgrade system.
As long as you do things that can enhance your own strength, you can gain experience points!
Even running or sleeping can increase experience points!
[Ding! I had a nightmare when I was sleeping. I dreamed that I became a soul master who had been practicing for two and a half years. My mental power increased slightly and my experience value was +100.]
[Ding! After a period of hard practice, the host has mastered the basic ax technique, and the experience value is +100]
...
Looking at the increasing experience value, Lin Feng knows that he will create his own myth on Douluo Continent!