"Hmm… Spirit is born from human's desire. After realizing one's true desire, the spirit will manifest according to that desire.
"Normally, people will recognize their true desire in six months to five years because people believe that their desires are their goals, not what they truly want.
"And because they're from your desires, the Spirit has a unique character. They'll support you in using their power, but in their own way. Because the Spirit shares their senses with you, they'll know what you're thinking… No wonder Ardagan can give all those missions and simply talk to me in an emergency.
"The Spirit itself has a similar classification to demons. There are five classifications for spirits based on their conversion rate.
"1% to 25% is Low Level Spirit.
"26% to 50% is Mid Level Spirit.
"51% to 75% is Advanced Level Spirit.
"76% to 99% is Ancient Level Spirit.
"Lastly, 100% Conversion Rate means you have the Legendary Spirit. There are not many records about Legendary Spirit because the last person to have it is Arvart Ardagan. It's said that Spirit itself is related to one's bloodline, so people are trying to marry those with higher conversion rate for the chance that their descendants to have a higher conversion rate.
"The higher the Conversion Rate, the more Spiritual Energy you can have. To grow your Spiritual Energy, you need to absorb the Spiritual Energy from Demon Crystals.
"Well, this is the first time I learn that Ardagan is a Legendary Spirit. However, it's truly surprising that Ardagan can help Heisk increasing her Conversion Rate. Either way, I can make use of this information."
Noel kept reading page after page. He learned all the basic knowledge about Spirits from the Spirit Classification to Spirit Seal to Spirit Oath.
The information might not be complete but it should be enough to avoid being fooled again by Anna.
After learning about the Spirits, Noel began to read the second book. He had a time off, so he didn't mind spending all his time in the library.
Obviously, he had many questions that he wanted to ask to Evan, but because of the promise, he ended up writing down his questions first.
Luckily, the books weren't that thick, allowing him to finish one book in just four hours.
As soon as he finished, Noel went to Evan to ask some questions. Although Evan kept showing an annoyed expression, he continued answering him until there were no more questions left.
Even Evan didn't expect for Noel to be able to learn all that from just two books. It showed how much Noel's imagination was.
He explored the possibility from the knowledge instead of taking everything he learned as it was.
As expected, due to the number of the questions and discussions they had, Evan became too busy that he ended up going back to his house later than usual.
Still, Noel was smiling the whole time as he gained so much knowledge that gave him endless possibility.
That night, Noel immediately applied the knowledge he just got.
While sitting on a lotus pose, Noel closed his eyes, focusing his attention to the Spirit Seal.
"People who haven't found their Spirit will have a trouble finding the Spirit Core. To put it simply, the Spirit Core is where the Spirit channels their energy.
"The Spiritual Energy given by the Spirit can now be channeled to the entire body depending on the intention. Of course, learning how to move it alone requires a huge amount of time. This whole time, I've been taking advantage of Ardagan's skills, which seems to be controlled by him.
"If I want to get stronger, I need to learn how to control the Spiritual Energy myself. I might still use Ardagan's skills, but I'll control how much power and how fast the Spiritual Energy flows when using that skill.
"At the same time, by using Ardagan's skills, I can learn how the Spiritual Energy flows in my body. This will help him in comprehending the Spiritual Energy.
"The flow of the Spiritual Energy itself carries a special feeling so it can make one recognize it easier.
"Anyway, with the help of Ardagan, I can skip a few stages… I don't need to find the Spirit Core since the Spirit Cores are on my Spirit Seals. Then, I need to learn how to direct the movement of the Spiritual Energy from both seals. It'll take more time, but Ardagan helps me through his skills.
"After learning how to direct the flow, I will learn about each application like muscle strengthening, senses enhancement, hiding presence and so on. Yeah, that sounds like a plan for me."
Noel had decided his priority as he immediately took out Ardagan, preparing to use Swift Strike and Mega Slash to feel the movement of the Spiritual Energy.
Although he could barely feel it, Noel felt the increased temperature in his hand and a drop in temperature in his heart. The two seals had different powers, so he expected this.
According to the book, the best imagination that one could use for flowing Spiritual Energy was like a water that smoothly flowed on a calm river.
Noel used that imagination to send a signal to his brain. It seemed that the brain was the one controlling the flow of energy, but how much one could transfer depended on the concentration and mastery.
Noel didn't give up in trying no matter how he felt. Although barely, he could see the improvement.
To his surprise, the learning process actually amused him to the point he forgot about time. Without him realizing, he had wasted more than seven hours in meditation.
He needed to sleep but at the same time, his excitement couldn't go down after discovering the Spiritual Energy.
Ultimately, his curiosity got the best of him. He ended up using the remaining time to continue his training.
As a result, Noel's eyebrows were so heavy when he did his morning routine. Even his mood decreased because of the lack of sleep.
"This is annoying. Lack of sleep can annoy and bother me this much… Why do humans need to sleep anyway?" Noel sighed as he went to the barrack with a fool mood, hoping that Anna wouldn't do something worse today.