140 Kazuya’s own Theory (1/2)

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Fujiyama Yumi was on her way home after handling the rest of the matters for the day after Kouzuki Kyouko left for the day to avoid the phone calls that have been bothering her ever since the news of Kazuya rejecting the proposal of Stockton International princess had spread. People had less guts to ask someone who was the successor of the name Kouzuki Corporation's Ice Queen because she, like her predecessor, was as cold as ice when she dealt with business matters.

It was when she was driving home that she got a call from the only person who she had no problems explaining the situation to.

”Were all the things I read true? The young master was really proposed to by that princess?” This was the first words that Yumi's sister who was now away in a university asked.

”It's true. The mistress went home early today to talk to the young master…” she explained what happened.

Yui was originally planned to work full time after she had graduated from her studies but the girl had decided to learn more about cuisine so that she could satisfy the palates of both Kyouko and the young master that she was supposed to serve. Because of her reason, their grandmother had approved of Yui's decision. The young master was a bit of a gourmet after all.

”So that's what happened…” Yui's voice was convinced. The actions suited someone like Kazuya after all. ”Was the person he was describing Mei-chan?” she couldn't help but ask.

”Who else could it be?” Yumi parked her car after arriving at the Kurogane estate.

*BAAM*

A loud sound that was accompanied by a tremor immediately alerted Yumi as she got out of her car and rushed to the source of the commotion.

”Welcome home Yumi” Akane greeted her after she had arrived.

”What's going on grandma?” Yumi peeked at the garden that was covered in a cloud of dust. The moment it cleared up, she found the master of the household lying on the ground while the young master who seemed to have been the one who caused this, stood proudly over Kouzuki Kou.

”The miss and the young master just found out that Kou-sama had arranged a marriage for the young master before he was born.” Akane replied.

”It's your turn mom. He won't be able to bully you now.” Kazuya tagged Kyouko in to have a chance at punishing Kou who had most of his strength used up by now. Kyouko wasn't fit for battles against someone like Kou so she was usually bullied by her father who had been growing a lot ever since Kou was being taught by Tsuna again.

”Welcome back Yumi-nee.” Kazuya already knew the moment she arrived and went to greet her after Kyouko had started another round of punishment towards her father.

”I'm home young m-master.” Yumi stuttered as she remembered her conversation with Kyouko during the day. She tried to hide the flush on her face and was a little glad that it was night time.

”I know things have been busy but how is your progress lately?” Kazuya asked since he hasn't looked over her progress for a while.

If this had been three years ago, both Yumi and Akane would have been shocked at the scene that was taking place at the yard. Tsuna's arrival however changed Kazuya's plans a bit as he added an entry to the book that was produced and entrusted to him by the demon lord; Hellion Mallum.

[Theory of Potential Unlocking]

·Taking into consideration the theory of omnispecies, Earth may have once had an abundant amount of mana but in the span of time, the planet's inhabitants have evolved or devolved to adjust the scarce presence of mana itself.

·The capacity for creatures to take full advantage of the usage of mana has been locked through the passage of time to make sure that the planet, with its lowered level of mana to survive.

·All creatures have their genes working in their lifespan. These genes have been inherited from the past and while some of them are active, most of them are in a dormant state.

·Certain conditions like battling or danger may unlock additional potential or increase a it would depend on a person's available unlockable potential but most of it is unknown at this point.

- An example of this when a creature is in it's growing stages, genes that are responsible for growth of both the body and the mind are activated and accelerate a person's capabilities.

- Another example is when you grow up and those genes are locked slowly. An adult will no longer have the metabolism they once had as well as the healing factors.

·Certain triggers in the environment will trigger the dormant genes of these creatures to be activated. It is possible that everyone has an innate ability to take advantage of the once abundant mana in the planet. The potential however has been locked and remains dormant because of the planet or the environment's condition.

With Kazuya's access to earth's technology as well as his memories of his time in Edea, this was one of the experiments he had confidently added into the legendary book that was made by his predecessor. It was taken after his study of genetics as well as the various notes of Natsu's theory of omnispecies that fascinated him the moment he read it.

The Kouzuki clan's main house had an abundant amount of mana ever since Kazuya had formed the mana gathering formation. It was only until a certain incident that this formation had grown unstable and the abundant mana it once had needed some time to recover to its ideal state.

With that in mind, the people inside it like Mei who was like Kazuya and originally did not have the talent to naturally control or sense mana eventually had the capacity to because of the knowledge that Kazuya had imparted to her. While the two of them unlocked their potential through knowledge, their growth was unlocked because of the environment.

Kyouko and Kou who originally had the talent and capacity towards mana grew even more because of the environment in their natural habitat. This gave Kazuya the idea to see if the other people that lived in their household like Fujiyamas could potentially unlock their capacities because of it.

The Fujiyamas, especially Akane, Yumi and Yui had already proven themselves to be trustworthy in Kazuya's eyes so to increase the protection in their family, Kazuya and Tsuna decided to give teaching them how to use mana a try. They were not the only ones who were taught as Kazuya already started on Tomoyo and Nanami whose homes were inside the range that was affected by the formation Kazuya had slowly expanded throughout the years.

Tsuna and Kou were responsible for Akane while Kyouko and Kazuya were responsible for Yumi's learning. Yui, was a little unfortunate because she was going to leave and train her culinary skills so she was not included in the plan.

As for the results, Kazuya had included notes in his theory that recorded Yumi's progress that was a lot similar to Mei. The only difference in their path was their primary elements which were a complete contrast of each other. Yumi had an affinity to the water element and had taken a liking to using ice spells that fit her nickname in the business world quite well.

”I have made some progress young master.” Yumi opened her palm and within seconds, a small ice sculpture started forming in her palm. The finer details took a little time but it was a lot quicker compared to when Kazuya last asked.

”Impressive!” an honest praise startled Yumi a little as Kazuya held her hand to feel the flow of mana that came from her hand. ”You have grown quite fast despite how busy everything… huh?” Kazuya was a little surprised because the mana flow he felt had been quite disturbed causing the sculpture to form a few cracks. ”Your control has improved a lot but as usual, your concentration…” Kazuya's voice trailed off as he couldn't think of why someone like Yumi had problems with her concentration.

”I apologize young master…” Yumi couldn't help but feel a little bitter because anyone else wouldn't have been able to put a dent on her concentration. The fact that Kazuya held her hand so casually every time he asked her to perform this made her want to cry as her resistance towards him was something that she couldn't improve.

”It's fine Yumi-nee. I'm just a little worried that you might have been overworking yourself after seeing that you've made such progress.” The worried gaze Kazuya gave her filled Yumi's chest with warmth and her stomach butterflies.

”Kazuya, Stop bullying Yumi-chan.” Kyouko appeared by his side.