"In that case, let's raise it to the third level of the Elementary Codex."
In the room, Lu Sheng sat cross-legged on the floor with his eyes closed. His muscles and skin were slowly suffused with purple.
The veins and muscles in his body were pulsing slightly. The most eye-catching thing was the little bump on his right arm.
At a speed that would leave one dumbfounded, a large number of tiny patterns appeared on it.
The purple patterns gathered on the surface of the bump. They looked like squirming purple worms.
"Fourth level …"
"Fifth level …"
"Sixth level …"
Lu Sheng continued to level up without stopping. On average, he used up 60 units of Mental Energy per level.
However, this Mental Energy that could strengthen a regular person into a combat expert was like entering a bottomless pit when it flowed into this strange organ. There was no reaction.
He remembered that the Codex mentioned that the school would distribute some special potions to the students every once in a while during each semester. These potions could provide sufficient nutrients for the sixth organ.
'The Mental Energy must've replaced the effects of the mysterious potions. That's why it's being consumed so much.' Lu Sheng kept monitoring the changes in his body.
Up until now, his body had undergone some subtle and unknown changes after reaching the sixth level of the Codex. Some of his lymphatic system and muscle tissues had mutated. However, he did not see any use for these changes other than the fact that they were more compatible with the sixth organ in his arm.
The Wind of Coordination derived from the sixth organ had indeed improved by a lot. If it could be compared to the level where it could slightly flutter his clothes before, it was now similar to the lowest level of a fan. It could be used to fan people.
'Continue. Level up to the seventh level … '
More than 60 units of Mental Energy disappeared.
Lu Sheng could clearly see that the patterns on the bump were getting darker. It was like a purple flower bud that could bloom at any moment.
"Level eight …
"Level nine …
"Level ten!"
The last level of the Elementary Codex was completely leveled up. The bump wriggled a little. Other than the purple patterns becoming more complicated, there was no other movement.
Lu Sheng frowned and stared at it for a while. He had spent more than 800 units of Mental Energy for this.
Yet, this was all he got?
"Wind of Coordination." With a thought, air flowed out of his pores.
The slight wind carried a strong stench of sweat and quickly swept through every corner of the room …
Lu Sheng's face darkened, and he quickly stopped.
"The wind is much stronger than before, equivalent to the highest level of a fan. However, even if the fan is turned to the highest level, it can only blow wind for people. What's the use of this? "
He stood up, feeling as if his body had undergone a subtle transformation.
"My recovery and endurance seem to have improved, but it's not obvious to me. For ordinary people, the improvement is huge."
"And … that's it?" Lu Sheng was unwilling to give up. He continued to scan his body with his Soul.
After a full half an hour, he realized in despair that he had spent more than 800 Mental Energy units to raise his Basic Codex to its limit, but in the end, it only gave him this little boost.
"This is really …" He didn't know what to say.
"Forget it. After the Elementary Codex, there's still the Intermediate Codex, the Advanced Codex, and the Chaos Codex … I don't believe it …"
He exhaled and was about to take a shower in the bathroom.
Suddenly, his footsteps stopped.
"No! My Divine Soul … My Divine Soul actually improved again!? "
He snapped back to his senses. He noticed his greatest point of improvement.
His main body's Divine Soul was already at the Void Underworld Third Tier. However, as his Basic Codex continued to improve, his Divine Soul seemed to be undergoing some sort of fundamental change in its structure.
This change allowed his Divine Soul to contain more Divine Soul Power. His control over it was also stronger.
'In other words, this world's system has a certain level of reference value for my main body's Divine Soul even at the Basic Codex …' This was a pleasant surprise.
Lu Sheng made a rough estimation. His main body's Divine Soul had improved by 20%, which was 20%, in just a day.
This was not replenished by Mental Energy. Instead, it was improved by improving the internal structure of his Divine Soul. He naturally absorbed the Divine Soul Power in his Heart World.
It should be known that for Void Underworld Heavenly Devils, the Heart World was equivalent to a huge warehouse. It could be used to support their continuous rebirth and recovery.
Hence, the total amount of Divine Soul Power in the Heart World would usually far surpass the total amount of a Heavenly Devil's Divine Soul.
However, since they were not of the same origin, there were too many impurities. Hence, it could not be completely absorbed. It could only be used as a temporary supplement. After that, it would take a long time to purify the main body.
Right now, the Codex of this world allowed Lu Sheng to vaguely absorb the Divine Soul in his Heart World and increase the upper limit of his Divine Soul.
In fact, Lu Sheng didn't even feel any aftereffects.
'Not bad, not bad! A few more times, and I'll be able to break through the Void Wheel and enter the second tier of the Void Underworld Realm! '
Lu Sheng was in a good mood. He quickly finished his shower and put on his uniform. Then, he looked at the time.
It was 8 p.m. sharp.
'I still have time. I can read some books in the library before I come back.' After Lu Sheng completed the Basic Codex, he immediately set his sights on the Intermediate Codex.
According to the records on the Basic Codex, the Intermediate Codex was a standard textbook that would only be given to students in their third and fourth years. It was more difficult. Naturally, if one wanted to read it beforehand, they could borrow it from the library.
Misca University's library was extremely old, but it was also extremely open.
Any student could enter the library to read any book. However, the books inside were not allowed to be taken out. They could only sit inside and read them.
Lu Sheng could not wait any longer. He packed his student ID and other necessities. Then, he brought a bottle of water with him and rushed to the library.
When he exited the dormitory building, the campus was quiet.
The gloomy street lamps shone a dim yellow light every ten meters or so.
Lu Sheng walked along the main road. He looked at the signs as he made his way to the library.
Occasionally, something would scuttle past the bushes in the forest and greenery by the roadside. They looked like rats, but they were too big. They would occasionally run around when they were startled by his footsteps.
He walked along the road and made seven or eight turns. Before an oval-shaped, dried-up fountain, Lu Sheng saw the huge library that was slightly dark in the night.
Under the dark clouds in the night, the rectangular marble library was occasionally illuminated by soundless flashes of lightning. The gloomy weather that was about to rain added a hint of coldness and loneliness to this eerie building.
Other than the two dim yellow wall lamps at the entrance, the rest of the second, third, and fourth floors of the library were pitch-black.
All the reading rooms and library rooms had no light at all.
Lu Sheng tightened his collar and looked around. Soon, he found a stone tablet that introduced the library.
He walked over and took a closer look.
"Loans are not allowed. Everyone can only read for an hour a day. There are no borrowing restrictions. You can find any books you need here. However, there are risks and opportunities. No matter what, you have to bear the consequences. — Jean Hilde. "
Lu Sheng frowned. What risk could there be in reading?
He passed the stone tablet and strode along the main road to the entrance of the library.
On both sides of the gloomy main road, there were ferocious monster statues everywhere. Occasionally, there was a human statue, but it still gave off a morbid and twisted feeling.
After walking two hundred meters along the main road, Lu Sheng stood in front of the entrance and looked in through the open door.
In the spacious hall, there was a weak oil lamp on the wall in the corner.
The light was so dim that it could barely illuminate the carpet under his feet.
"Why are you reading so late at night?" On the wall to the right of the entrance, a small door suddenly opened, and a hunchbacked, white-haired old man walked out. He held a lantern in his hand and looked at Lu Sheng.
"I suddenly needed some information, so I rushed over." Lu Sheng nodded.
"Go in. Remember, you'll be out in an hour. Otherwise, don't blame me for not reminding you, "the old man said casually.
"Alright." Lu Sheng nodded.
"This lantern is for you. Return it to me when you come out." The old man handed the lantern to Lu Sheng.
"Thank you, Uncle."
"Go on …" The old man grinned, revealing his missing front teeth.
With the lantern in hand, Lu Sheng walked to the empty space on the right side of the hall and looked at the map on the stone tablet. Soon, he found the floor he wanted to go to — the second floor.
The intermediate Codex was in the Codex teaching room on the second floor.
He found his target and quickly went up the stairs to the second floor. When he turned a corner, he looked back and saw that the old man had followed him to the staircase. The old man was looking up at him, and a pair of withered old hands were waving at him.
"Uncle, go back. I'll be out in a while," Lu Sheng replied.
The old man nodded and smiled without saying a word.
Lu Sheng continued up with the lantern in hand. When he reached the second floor, there were empty and cold corridors on both sides.
He checked room by room and soon found the Codex teaching room he was looking for.
He reached out and was about to open the door to enter. Suddenly, Lu Sheng's heart skipped a beat. He looked to his side.
About ten meters away from him, at the staircase to the second floor, the old man was standing in the darkness, smiling at him and waving at him.
"Uncle, go back and rest. I'll be done in a while," Lu Sheng replied again.
The old man nodded but still did not say a word.
Lu Sheng opened the door and entered the library.
Inside, there were rows of bookshelves, stacked with black and purple covered tomes. Based on a rough estimate, there were at least ten bookshelves in this reading room alone. Each bookshelf had hundreds of books, and all of them were Codex teaching materials.
Lu Sheng closed the door behind him. Holding the lantern, he quickly walked to the rows of bookshelves and started looking for the intermediate teaching materials he needed.
The Codex teaching materials were divided according to the organs of different abilities. However, Wind of Harmony and Enhanced Perception were the most common abilities. Therefore, the Codex books were the most numerous, and they were all grouped together.
Other than the standard Codex books for university teaching materials, Lu Sheng also found many Codex books written by the professors themselves.
However, he did not touch anything else. He quickly locked onto the intermediate Codex book. He took it out from between the bookshelves.
With the book in hand, he quickly walked to a long table in the reading room and sat down.
Lu Sheng moved the lantern so that the light could shine on all the pages of the book.
Just as he was about to flip through the book, his heart skipped a beat. He raised his head and looked to the right.
Outside the window on the right of the reading room stood the old man who had been guarding the door just now. He smiled at Lu Sheng and was still waving at him lightly.
Lu Sheng already felt that there was something wrong with this person.
However, he was not a simple person. Who cared what the old man's goal was? He had to settle his goal first and leave the rest for later.
After thinking for a while, Lu Sheng felt that it was his bad manners that made the old man so persistent. He simply waved at the old man outside the window.
"You don't have to look after me, uncle. It's late. You should go back and rest. I'll go back after I finish reading. "
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