(3 days later)

In the virtual space of the library of records, Corey sat in a cross-legged position with his eyes closed.

His eyes remained closed for at least five seconds then he opened them, and the moment his eyes opened, he stretched out his right hand and when he did, the virtual mana in the virtual space stirred slightly.

Corey, whose eyes was pure white without pupils had an expression of extreme focus.

In his vision were numerous rapidly forming symbols and as the symbols were formed, around Corey was a translucent barrier.

These barrier was circular but it was different from a normal circular barrier.

Instead of the barrier been a smooth circular barrier, it was hexagonal in the sense that, all over the barrier were small hexagonal shapes.

As Corey looked at the barrier, he nodded with satisfaction.

"Although it's not the best, it's better than before."

Corey spoke with a small smile as he looked at the hexagon barrier. He blinked his eyes and when he did, his eyes changed back to his normal eyes with black pupils.

He lowered his hand after his eyes changed back to normal and as he lowered his hand, the barrier disappeared.

"Haa. I'm so tired."

Corey yawned while rubbing the back of his head with sleepy eyes.

Ever since he read the book on Fundamentals of Magic, he had not had a wink of sleep.

Apart from reading whatever book he could read, he also trained on some of his skills making the skill section of his status window to become different.

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*SKILLS*

Record(Talent Skill), Silent Steps(Novice -> Intermediate), Super Jump(Intermediate), Undercover(Novice), Lock picking(Novice -> Expert), Focus(Talent Skill), Lightning Movement Art (Ancient, Lv 1 -> 2, Basic -> Novice), Vibration Manipulation (Novice), Full Counter (Legendary, Novice), Average Regeneration (Lv 5, Intermediate, Passive), Fog Manipulation (Novice), Paragon Body, Axe Intent (Basic), Paragon Martial Arts (Basic -> Novice), Eyes of Omniscience (Talent Skill), Killing Intent (Basic), Herbal Knowledge (Basic -> Novice), Anatomical Knowledge (Basic -> Novice), Hexagon Barrier (Master)

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There were seven changes Corey had made to his skill section in the past three days, and honestly, if anybody knew that Corey was able to make that many to his set of skills in just three days.

It would shock many, especially the knowledgeable to their core.

What would even shock them the more would be when they found out the level of the skills Corey was able to increase in proficiency.

The changes to Corey's skill section of his status window were:

Silent Steps which increased from Novice Proficiency to Intermediate Proficiency.

Lock picking which increased from Novice Proficiency to Expert Proficiency.

Lightning Movement Art which increased from Basic Proficiency to Novice Proficiency, while also increasing from level 1 to level 2.

Paragon Martial Arts which increased from Basic Proficiency to Novice Proficiency.

Herbal Knowledge which increased from Basic Proficiency to Novice Proficiency.

Anatomical Knowledge which increased from Basic Proficiency to Novice Proficiency.

And his new defensive skill, Hexagon Barrier which had a whooping Master Proficiency level.

In this past three days, Corey had also shocked himself because he actually didn't expect to improve as much as he did.

The thing was that whenever Corey trained, he just… understood the best way to improve for certain skills. Improving the proficiency of certain skills was much easier than he expected.

If possible, he would have loved to increase the proficiency of all his skills to higher levels but he knew that he didn't have the time to do that since his next fight in the Underworld was tomorrow.

Due to Corey increasing the proficiency of eight skills, some skills had certain changes.

Silent Steps which was now at Intermediate level of Proficiency made Corey's steps more silent to the point that Corey could not even hear his steps whenever he walked.

To increase the proficiency of the skill, Corey had to activate Eyes of Omniscience as he ran with Silent Steps activated at all times.action

Eyes of Omniscience was literally a cheat like ability cause it helped Corey so much during the past three days.

Take Silent Steps for example, as Corey ran with silent steps activated. Corey was able to see how the mana in his feet and legs moved and worked whenever he took a step.

Corey just had to study the pattern, the invisible symbols that the mana formed then he just had to practice it a lot.

Although Corey increased the proficiency from novice to intermediate, Corey realized few things about proficiency levels.

From his hypothesis, there are two stages of proficiency levels, low stage and high stage.

It was just like when the proficiency levels were previously in terms of numbers and from what the Universal System previously said,

Level 1 proficiency is now basic proficiency.

Level 2-3 is now novice proficiency.

Level 4-5 is now intermediate proficiency.

And so on and so forth.

So with what the Universal System previously said, Corey guessed that proficiency levels or at least most proficiency levels had two stages, which he liked to call low stage and high stage.

And Corey's proficiency level of silent steps is at the high stage intermediate proficiency level.The second skill which Corey improved on was Lock picking.

And why did Corey improve on it?

Cause it was literally one of the easiest, if not the easiest skill Corey could improve at a fast rate in a short period of time.

In fact, there were times Corey practiced the skill just to relax and while away time.

He would make the virtual space in the library of records to make a treasure chest or a locked door, then he would practice the lock picking skill on the door.

It was in a way, a sort of stress relief for Corey after practicing his other skills for quite a long time.

The third skill which Corey improved upon was the Lightning Movement Art.

The lightning movement art was ancient level skill which was given to him by the old man, Wandering Paragon.

The old man told him that the skill had five levels in it and in these past three days, Corey has unlocked the second level which gave him a new sub skill.

Flash Step

Flash Step was a skill that gave Corey new ideas on how to fight and Corey knew that it would be one of his trump cards now and possibly in the future.

The fourth skill that Corey improved was the Paragon Martial Arts that the Paragon Ancestor gave him.

The Paragon Martial Arts was a martial art that gave Corey knowledge regarding numerous combat skills and Corey was able to improve it to the low level novice level.

The Paragon Martial Arts was one of the most difficult skills Corey tried to improve, which was not surprising since the skill was given to him by the most powerful being in the multiverse.

The Paragon Martial Arts gave Corey knowledge about hand to hand combat and even weapon combat. It was basically a martial arts that taught Corey the most efficient ways of fighting to kill his enemies.

The fifth and sixth skill that Corey improved on, were the skills he got from the Poison Warlock class: Herbal Knowledge and Anatomical Knowledge.

Increasing the proficiency of the two skills from basic proficiency to low level novice proficiency was not extremely difficult for Corey since all he had to do was read the books about plants and animals which he recorded from the library in the Underworld.

The last change to Corey's skill section was the addition of a new skill, The Hexagon Barrier.

When Corey created the hexagon barrier skill after reading numerous books on magic, he thought he had created a new skill but unfortunately, he was naïve in his thinking.

When he successfully created the skill, the Universal System just added the hexagon barrier skill to his list of skills, making Corey to realize that creating a new skill in the entire universe was an extremely difficult feat.

Despite the fact that the hexagon skill was not a new skill, Corey decided to improve his proficiency in it because he realized that the higher his proficiency of some skills, the faster he could deploy his skills and the lesser his mana consumption.

Also, when his proficiency reached the master level, Corey could instantly deploy the hexagon barrier around him.

Corey would have loved to increase his proficiency in Full Counter, Fog Manipulation and Vibration Manipulation but the three skills were more difficult and time consuming for Corey to improve on, especially the skill, Full Counter.

"Yaawwnnn."

Corey yawned loudly with his left hand covering his mouth.

"Oh fuck. I really need to sleep. I think I've not slept for over a week."

Corey released a soft sigh then he stood, but just as he stood, he received a warning message from Rhea and Corey's eyes went cold.

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[A/N: I removed the skill, Foundation Spear Techniques cause the Paragon Martial Arts is higher graded and also teaches Corey foundation spear techniques.]