So, preciously, his body and power core had been creating a balance and developing together.
But after getting the system notification, he realized the balance had suddenly broken off, his Sub-Technique would make the system issue series of warnings.
Luckily, the system was there and he was still well-fed and as well developing fast, so despite not doing any physical body training his physique was constantly improving and transforming thanks to the system, which meant the bottleneck had more or less of a counter down that would be worn off soon.
While he couldn't practice his Sub-Technique weirdly he could still practice his meditation technique, he found out that the meditation technique was slowly modifying his body. In a way, his Mana would just flow in and out of his body like natural air oxygen, which would energize him like a good night's sleep.
Tobi was really confused and ecstatic about it, this meant one was natural and the system assume the other artificially made, and his body wouldn't suffer any sort of side effects with his demon meditation technique.
With several tries, he discovered that the world's energy could allow him to stay awake for a least a week, but not indefinitely.
Every time he would use 'Demon Meditation Technique, the energizing effect would last less and less. And only a good night's sleep would reset its effectiveness.
Tobi's progress made him realize, how unique the system meditation technique was than his own. Through using 'Demon Eyes', not only could he perceive how his mana core changes in size, but also a rough understanding of the amount of energy contained in his body, this was one of the effects he noticed from the constant use of 'Demon Eyes- Mana Vision'
The 'Demon Meditation, would slowly feed the world energy to his body and mana core at a snail pace, allowing his body to mature and adapt to the expanding from the size of a bean Mana core to that of a glass marble.
Once the mana core grew to marble size, further progress can only be made with only the 'Demon Meditation Technique' which would give his physical body energy that would forcefully compress the mana core back into bean size.
Tobi had no idea how the system even work, so he was less apprehensive about such a phenomenon worked and had found no way around it as it seems it worked automatically because of the system. Mana core and body development had to go hand in hand, so there was no shortcut.
Bottlenecks happened when he tried to use the Sub-Technique, while the mana core was still at its peak form. The world energy would be rejected by the mana core, and if forcefully absorbed by his body would run wild.
By continuously undergoing expansion, and compression cycles. His mana capacity was already incomparable to when he had just discovered his power.
The only downside was that he barely had 5% control over all the Mana in his core.
He also discovered that he was practicing the 'Demon Meditation Technique' he could momentarily modify his body so that when he breathed in the natural mana, he could combine it with his own temporarily exceeding his limits and empowering his whole body to a different level for at least a thirty seconds to a minute at best
By that time he would be able to expand the resulting energy, moving it from the solar plexus outwards until even his eyes would be overflowing with Mana, just like using 'Demon Eyes'.
Ever since he had the system, he had noticed qualitative changes to his body. Apart from being better at withstanding cold and heat, or being sick, his skin seemed a bit pale with no blemishes.
Even his supposed birthmark was slowly fading away, living him a spotless and healthy baby.
When his whole family would catch a cold, he would either get over it before the symptoms manifested, or recover in a day or two.
'Unless it's all a crazy coincidence, 'Demon Regeneration' and 'Demon Meditation technique' automatically could activates itself and at the same time, is at my disposal to temper my body. And if my guess is right, this means that even if I sustain any injuries I could use it as a crutch to heal myself without efforts.' He thought.
'Hopefully, it should also be able to overcome huge wounds by the time it levels up, it shouldn't have any side effects too'
As for his family life, it also experienced some changes during the following months.
The relationship between him and his family got better, most especially with everyone in particular except Tim.
His family would hardly live his side, and even if they did. They would stay within a certain range, watching over him.
With Tim being out of the way, for now, life moved on smoothly.
He had already started saying babble words, out loud making sure to say "Mama" when Christy least expected it and "Dada" Whenever Christopher wanted to release his 'Little Brother'.
Even though he had just completed a year as a baby, Christopher seem eager to bring another child into the world, which he definitely wouldn't allow them to have their way.
His baby business was on a smooth sailing from good to better and would be ruined if another child was to come in the way.
Christopher would always get pissed off seeing the little runt ruined his sweet moment, and would be forced to hide his 'Little brother' back into his pants, with Christy chuckling with shyness by the side.
While in the morning, he would get up feeling angry from the previous night's incident and go to work starting off his busy day with Tobi on his mind.
With no other choice, he could only let the little runt steal his wife's attention and care, and if Christy was doing something else the older daughter would spend most of the time with Tobi.
While Christopher didn't realize it, he was somehow slowly distancing himself from his little wife stealer. And when he tells his friends in the neighboring village, they would just laugh it off.
Though he felt a bit annoyed, inwardly Christopher was always happy to see his child growing up, and was a bit sad and angry he couldn't spend most of his time with them.
Even though, he always thought of catching up with his family, most especially with his son. However, he would always come back home late in the night, when almost everyone was asleep.
With a self-comfort to himself, he would assume the little runt was too small to take notice of his minor absence.
And he would promise himself to work harder the next day, in order to create enough time to spend with him. However, this process wouldn't last long, with the constant mental and physical stress he would face as the after-effects.
He could only create a mental shield, to catch up later, Tobi's strong side also never ceased to amaze him always exhibiting one funny habit to the other.