If he recalled the happiest memories he had, Luze would tell you the memories where Ruach took him and Zess to the market in the city or when they were going out from the capital city.
His father was still a viscount at that time, he smiled more and laugh more at his joke.
He missed the old manor in the middle of the forest far away from the Empire, he missed his old friends who lived there.
The manor was owned by Ruach's old friend, sadly Luze never knew what happened to the point his father never bring them there again.
He would still go there with Ellioth, their butler but without Ruach.
Since they never went there and his father became a Grand Duke, a really high position from the Emperor, the happy memories started to fade.
Their time always involved training ground, casting the spell, running for five laps and sparring.
Their father's smile was gone and replaced by stern expression.
"Don't depend on the magic from your body, manipulate the mana from your surrounding instead!"
Odd, usually people would be so happy to possess mana from inside themselves rather than the dull light magic from nature.
It was true if you could use them correctly, it could be a source of endless mana but it was hard.
Nature's mana is hard to control and sometimes invisible to normal people's eyes. Only experienced one could do it correctly.
Only nobles who usually granted body with mana, but his father always trained them to use the mana from nature instead.
Ruach never trained them to control or manipulate the powerful magic from inside their body, he did teach them but rarely let them use it unless for basic knowledge.
It was as if Ruach had a safe line, level of mana both Zess and Luze could use stopped before the line.
Luze once tried to use the power, guessing what would happen if he cast a spell using so much mana from inside his body.
He fainted like someone hit his small body; punching his guts and he lost his vision.
When he woke up he saw his father on the armchair beside his bed, he thought he might be dreaming because his father never sat on that chair anymore.
He saw Ruach's worried face, a wet towel wiping his sweat, "I told you not to use the power, wasn't?"
Ruach didn't wait for the answer, he caressed the side of Luze's face and lulled him to sleep.
The next time when Luze woke up, Ruach was gone and he found Zess sleeping soundly beside him.
That day he vowed he would investigate the power they possessed step by step.
He hated the training ground but he had no choice but to continue training, most of the time with the Knight of their family or even with Ellioth.
His father would come once or twice every month between his busy schedule, managing their business and territory under his Grand Duke's title.
He became less and less happy as the time went by, he missed his father's smile the most and their cranky jokes.
He kept going to Walter's manor when they had time, together with Zess and Ellioth.
Without Ruach and it saddened him.