As Lu Yuan lightly pressed his finger down, the System Panel changed at once.
[Evolution Point -500!] [Extreme Cold Piercing Kill (SSS-rank-) (Beginner) → Extreme Cold Piercing Kill (SSS-rank-) (Primary)]
"Whew~ Finally, I've reached primary proficiency."
Lu Yuan smiled faintly.
He had now mastered how to unleash Extreme Cold Piercing Kill.
He compressed his Ice Elemental Energy again and again, squeezing it into an incredibly dense point before releasing it in an instant to deal a ton of damage.
It was a pretty good Martial Skill.
"But it's still not enough..."
The requirement to leave this place was to raise Extreme Cold Piercing Kill to advanced proficiency!
So...
Lu Yuan didn't hesitate at all.
He continued spending Evolution Points to evolve the Martial Skill.
[Evolution Point -14400!] [Extreme Cold Piercing Kill (SSS-rank-) (Primary) → Extreme Cold Piercing Kill (SSS-rank-) (Intermediate)]
The memories of "gathering momentum" and "unleashing" surged into Lu Yuan's mind.
It was as if he had truly practiced them thousands upon thousands of times.
At this point, Lu Yuan's Extreme Cold Piercing Kill had reached intermediate proficiency.
But that wasn't the end!
The requirement for leaving was advanced proficiency.
So Lu Yuan kept adding points!
As he lightly pressed his finger down, the System Panel changed again.
[Evolution Point -60000!] [Extreme Cold Piercing Kill (SSS-rank-) (Intermediate) → Extreme Cold Piercing Kill (SSS-rank-) (Advanced)]
The requirement of advanced proficiency had been met.
Lu Yuan smiled faintly.
Fortunately, before coming here, he had killed a Sixth Order Lower Rank ferocious beast and gained plenty of Evolution Points.
Otherwise, if he'd had to practice on his own, who knew how long it would've taken?
His friends and family couldn't see him and would inevitably worry about him.
That was something Lu Yuan didn't want to