Purchasing a large number of grade-2 mana stones and high-quality medical solutions for two-star notes, Jason wanted to test the waters first, before he would invest more into refining his physique completely.

The majority of his current investment of two-star notes was in mana stones, which he needed either way while he didn't use much money to purchase the medical solutions.

Because the delivery service would require some time, Jason worked out and went outside the house for the first time in several days, where he noticed Greg practicing a martial art technique.

Smiling lightly, he noticed that his friend seemed to have improved once again, because he entered the 7th Adept rank, even if it was still unstable.

Seeing Jason, the two greeted each other, before they sparred for an hour, until Jason's package finally arrived, as he received a notification on his quantum bracelet.

While Jason seemed to be totally fine, Greg laid on the ground, with extreme difficulties to breath, as he looked at his friend in shock

'How can his physique already reach the Expert rank! Just wait until Taurus evolves...then I'm going to beat you once again!!' 

In the end, Greg was easily defeated, because his physique was slightly lower than Jason's, even if it was already infinitely close to the 1st Expert rank.

With his Berserk ability, he could fight Jason rather easy head-on and even overwhelm him, but he couldn't suppress the wild instinct and charged mindlessly at his opponent, once he sustained even the slightest injury.

If Jason didn't have any affinities, Greg might be able to win, but in the end, two affinities at the mid-evolved rank and Jason's strong physique overwhelmed him, which led Greg to lose miserably.

Sulking for a moment, he regained his senses, as he swore to himself, that he would work hard in order to not fall back, even if he was already sure of the fact that Jason would soar extremely fast.

Greg was extremely bothered by that fact and also jealous, but there was nothing to change, because Jason's talent and determination were hard to achieve, even if he already worked extremely hard, Jason seemed to work multiple times harder.

Jason rushed towards the street, where the drone descended, only to scan his ID, before it soared back into the sky after the package was delivered.

Storing everything inside his spatial ring, he rushed back to his room, where he took out a large basin, which he filled with water that he warmed up by igniting his black origin flame to a certain degree.

Not being able to hold back his impatience, Jason pulled out a medical solution, which he immediately dissolved in the warm water, before a thick aromatic scent permeated the air inside his room.

'Should I have bought an isolation magic circle?' He asked himself, noticing a faint colored hue filling the air, as he shook his head.

It would cost too much to purchase a portable isolation magic circle, without considering the necessary supply of mana, while inscribing it by himself was still a far-fetched dream, because his proficiency with runes and mana circles, could be considered as non-existent.

He inscribed only two runes until now, and they were extremely crude,  not even worth mentioning in his opinion.

As such, he disregarded the possibility of inscribing runes by himself for the moment, until he would have accumulated enough practice.

'When will I even start learning how to inscribe?' Jason thought because he couldn't take any time with rune inscribing for now due to the necessary practice he required to concoct the Lesser Minotaur bloodline unsealing potion in roughly one month if the ingredients were to arrive on time.

Thinking about this, Jason turned slightly nervous, but this wouldn't help him a tiny bit, and focusing on his current task would be much more important than anything else!

Currently, he didn't have to go to school, because he was thrown out of the special combat class, due to him applying for a leave of absence, while the theoretical lessons were also not mandatory for him anymore.

As such, Jason was able to focus on himself to the fullest, which included the body refining which he was about to practice for the first time, as he pulled out a mountain of mana stones, which he laid around the basin.

'More is always better, right?' Smiling lightly, he took out the remaining medical solutions, which he laid on a small table next to the basin.

If he required more nutrition, Jason could just take one of the medical solutions from the table, without the need to leave the basin, which might interrupt his concentration. 

Rephrasing the first steps he learned completely, Jason took off his clothes, before he slowly descended into the basin.

Only his head protruded out of the water surface, and he immediately felt his temperature rising, as his pores instinctively opened in order to accept the nutrition within the medical solution.

Knowing what to do, Jason visualized every single step in his mind before he started the Netherworld's fort Initial body refining phase.

In order to truly start refining his body, Jason would have to slowly adjust his feeble body to the changes, until he could truly start by tempering and refining his whole physique.

This adjusting phase was also called [Initial phase] because it was the phase everyone had to go through as if it was the origin of the whole body refining process.

With a serious expression, Jason started to loosen up several dozen threads from the mana stones around him.

Leading them to him, he felt mana surging inside his entire body, filling every single cell within him.

However the same happened with the nutrition in his body and it seemed as if they were competing against each other, which caused his body to itch slightly.

Igniting the origin flame in his body, the already thickened soul connection inside his soul world glimmered lightly, and it seemed as if the black flame screamed out in joy, as it occupied Jason's entire being, with feeble flames.

'Will this be enough?' He began to worry because he already felt that his black origin flame was unable to occupy his whole body while increasing the flame's temperature at the same time, with its current capabilities.

Pondering for a moment, Jason was sure that his black origin flame would be powerful and durable enough in order to test the Netherworld's forte technique's efficiency and dangers.

In the end, he would have to see how good it worked and if practicing the technique would cause any obstacles for his other affinities before he would even start to inspect the technique's efficiency in depth.

Slowly exerting the Netherworld's forte technique according to the described way, Jason immediately felt a colossal surge of the nutrition and mana within his body, which forced him to groan, as his whole body roared out as if it was a fierce beast.

"UGH!!!" Lifting his hand out of the basin, he could barely grip the medical solutions on the table, before he threw all of them into the basin while releasing the mana within the all mana stones around him.

Biting his lips, Jason could only lament about his stinginess, even though he knew that the Initial phase was said to require the most nutrition, due to the body's lack of high-quality nutrition in normal cases.

However, the described requirements were still lower than what Jason bought when he suddenly remembered that he was a completely different race in a different environment.

Calling himself stupid several times because he didn't think about such a basic thing, as he remembered that the Calydar race had a higher innate physique which already included better food, a better environment, and many other reasons, that could have prevented Jason's form his idiotic stingy purchase.

However, in the end, with all medical solutions dissolved inside the warm water, that slowly heated up due to the black origin flame, which seemed to scream in joy to finally be allowed to exert its fullest strength, everything worked out fine.

Continuing to exert the Netherworld's fort body refining technique, Jason gritted his teeth, until he sensed that some cells within his body began to change, and with his eyes wide open, he could perceive an extremely faint red, blazing hue around it.

With this, he stopped exerting the body refining technique, with his black origin flame entering Jason's soul world once again, as he switched between all three affinities he currently possessed in order to see if there was any problem.

However, to Jason's fortune, there seemed to be no problem for now, and rather than that, his black origin flame circulated smoother through his body to an almost invisible degree.

Jason wouldn't have noticed this, if the changed cells that gleamed in a faint blazing hue, didn't brighten up when the black origin flame circulated exactly through the specific area where the changed cells were situated.

Without being able to suppress there was only one thought in his mind.

'Let's hasten up the process!', as he finally told his black origin flame what he wanted to do for long

"You're allowed to feast only my soul energy! Annex every single vacant soul energy unit!!"