Felix put some clothes on and walked outside with Yui so he could learn the body art. "Okay, he's the manual. Read through it and ask me any questions that you have." Listening to his master, Felix looked through the black book describing the body art.
The Body Art itself had two different things it worked on. One, was obviously how strong the body was and the other thing was how pure and dense the Yoki in the body was. To fully start the body art, the user has to first reach the first level of the Yoki refinement.
Felix started practicing the Yoki Refinement scripture in the manual. The aim was to get the Yoki in the heart to spin at incredible speeds until it created it's on kind of pseudo-gravity which would constantly refine and compress the Yoki in the heart. An added benefit would be that it would also clear the blood of all impurities and most toxins when it goes through the heart.
Felix first willed all the wisps of Yoki in his heart to gather together. When they were all within one big ball of Yoki, Felix started spinning it like a miniature planet.
Slowly but surely, the ball of Yoki started picking up speed and Felix had to pay less and less attention to keeping the ball together as it was slowly holding itself together on its own. Felix felt that the technique was quite mystical as he didn't quite know how it simulated gravity and also didn't hurt his body at the same time.
Felix's Yoki was white and red and both those colors were slowly getting brighter and more luminous as the spinning got faster and faster, like the spinning was washing away all the impurities in it.
Yui watched her disciple and felt his control over Yoki was incredible for a beginner. She had estimated that he wouldn't be able to even start the spinning and would ask her how she even had a whole plan for her teaching segment but her disciple had gone above and beyond. She felt both proud and unhappy over her lack of need to help her student.
Inside Felix's heart, the ball of Yoki was being compressed even further. The Yoki in his heart before were like wisps of gas but now it was like a sphere of white and red liquid. The spinning speed was incredibly fast right now and Felix didn't need to pay any attention to keeping the ball together as it was pretty much self-sufficient, instead he focused all his efforts on increasing the speed of the rotation.
Soon he'd fully completed the first level of Yoki Refinement, shocking his Master. His Yoki was pure and dense, like pure spring water. It looked like a planet of white water, with continents of red land and despite its actual size, it seemed quite vast.
Felix felt a relaxing feeling pervade throughout his body as his blood was cleaned of its impurities and some toxins in it. Some Yoki broke from the ball and flowed around his body, nourishing it and increasing its potential for growth.
Felix was undergoing a drastic change because of his Yoki's purity increase, with his muscles becoming more efficient, his blood being able to hold higher amounts of oxygen and nutrients in it and his organs were being cleaned through by the clean, pure blood.
Yui looked at her disciple and couldn't stop her eyes from going wide. She estimated that it would take more than a month or two before he could complete the first level, but here he was, proving her wrong. Her surprise was swept away by a ferocious smile full of fervor and excitement. "I'm going to train you into the perfect Demon!" was all she uttered before she wrote a note for Felix, left it on his lap and charged off somewhere.
About 15 minutes later, after Felix had been fully cleansed by his new Yoki, he opened his eyes. They were full of luster and looked like sparkling crystals of blood, their attention was focused on the note on his lap which read "Start your training in the Body Art fully now."
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And that's exactly what Felix did. The first level of the Body Art was a fist art which focused on tempering the body for battle. Felix got into the first stance and started to swing his fists in a simple manner.
Even though he didn't swing his fists with much strength, the wind surrounding his body went wild and sounded like the roaring of dragons and tigers. Felix's body felt like it was being slowly ripped apart and put back together again. The red lines appeared on his body again and mist swirled around his body like a white dragon, sometimes going around and through his arms, sometimes going around and through his legs.
The Yoki in his heart was rushing around his body in some kind of heated frenzy, refining and tempering his flesh constantly like his body was metal and Yoki was the furnace. Impurities were burnt out by his Yoki and his body was becoming more and more perverse in its power.
Felix could feel the changes in his body and kept trying harder at the first level of the Art, his appetite for power was fully ignited and he intended to feed it fully.
1 month later~
Felix struck out with his fist in a casual manner but as he did it the air exploded around his fist, the ground at his feet cracked slightly and his body's muscles rippled like they were alive. He'd finally completed the first level of the Body Tempering Art, along with entering the second level of Yoki Refinement. This put him at the 2nd level of the Demonic Body Realm.
Right now he had grown to 7"2, his skin was bronze from being in the sun training all day and he had red lines on his body always now, instead of just when he activated his Yoki.
Felix nodded proudly at his achievements that even his Masters didn't think were possible. He seemed to be incredibly talented in the Way of the Demon, and his Masters always seemed to look at him with pride whenever he did something to their unbelievable high standards.
Speaking of Masters, Felix had to meet his Masters today, they apparently had something important to tell him.
When he arrived, he saw uncharacteristic serious expressions on his Masters' faces', like something was wrong. This caused Felix to frown as if it was enough to make his Masters serious then it must be a massive problem/event.
"Good, you're here Felix. Sit so we can talk." Yui spoke as she motioned for Felix to sit opposite them.
After sitting, Felix went to speak before Mei interrupted him "We need you to do something for us. Something quite serious."
Felix nodded and straightened his back to show he was ready for whatever news they had to throw at him. "We need you to go to an academy."
Felix nearly fell over at this "Wait, w-what? That's it?" his voice was full of confusion that the pair of Masters picked up on instantly. "Yes, that's it. But this academy is an academy for Demons, Monsters and all sorts of things, you'll have to constantly fight, kill and take in this academy. Only the strong can survive."
Hearing this, Felix wasn't deterred even a little bit, instead, he started to grow excited. Over this month, his exposure to pure Yoki had started to change him to think and act a little bit like a Demon. He could generally be regarded as a Humanoid Demon Beast at this point, in both body and mind.
"I will go. But why do you need me to go?" Felix raised an eyebrow as he asked his Masters a question in return for his compliance.
"Because the other Masters of the inner areas of the other parts of the Demonic Lands found out we took a disciple somehow and now they want to see how you match up to the Demons, Monsters and other creatures at the Academy as their many disciples are there. This is why it will be hard; You'll constantly be aimed at by their sights." Mei said with worry in her eyes. She knew how strong her disciple was but she couldn't help but worry for him because she knew how strong the disciples of the other mountains were.
After continuing to talk about this for a while longer, Felix was stubborn in his decision to go even after his masters said they could get him out of it. He knew that he couldn't become strong if all he did was stay inside and train, he had to go through uncountable amounts of fighting and killing if he wanted to become strong and the Academy could offer him just that.
Mei called Felix outside to give him some intense combat training before he went to the Academy's entrance exam in 2 weeks.
"Okay, I'm going to teach you a combined Technique along with some foundational Fighting Techniques. It won't be easy, so prepare yourself, Felix!" Mei's enthusiastic voice boomed at Felix as soon as he entered the training field.
He could just feel how much this was going to get him hurt, purely by her enthusiasm.