The Martial Unity

From that day, Master Gurren never called Rui an arrogant brat ever again.

Creating the telescopic technique wasn't hard once Rui gained a strong foundation in heaven bending. The formula for magnification employed in telescopes was dreadfully simple, simple enough to be taught in high school. Yet because there was some esoteric out there that could do the job without requiring an understanding of optics; it had never been uncovered by the science community of Gaia.

Rui shook his head, heaving a sigh as he began the hard part, teaching the technique to Master Gurren.

Master Gurren was absolutely resolved to master the technique no matter how long it took. Rui saved himself by writing down as dumbed-down an explanation as he possibly could.

Yet even that was too much for a fossil of a Master that had lived for centuries.

"What is this…?" He stared at strange symbols that Rui had jotted down in a booklet.

"That is Physics," Rui smiled pleasantly. "You're going to have to learn it."

What followed was a crash course and tutoring classes as Rui had the man build up a simple foundation of the basic mathematics that the Master simply could not do without if he wanted to learn the technique.

Much to Rui's surprise, however, the Master was not nearly as overwhelmed as he expected him to be.

Perhaps it was because Martial Masters were necessarily familiar and proficient with the power of thought. However, harnessing thought in combat was different from harnessing thought for scholarly pursuit.

After several hours of tutoring on algebra and solving problems and numericals, Master Gurren heaved a tired sigh.

Several days had gone by since Rui began teaching him the mathematical foundations. Master Gurren had no idea how and why this was necessary for the magical technique that Rui had displayed to him that day. However, his ascended senses could sense Rui's sincerity emanating from within his mind. Therefore, he decided to simply trust that this was somehow relevant to peering into the depths of the universe.

Rui hadn't even gotten to the principle of optical magnification yet. He hadn't even presented the framework for the nature of light and the phenomenon of refraction. The Master was so illiterate that he was far from reaching the stage needed to even understand the technique.

That was Rui building up his proficiency with algebra.

THUD

Rui dropped a stack of books on the topic of algebra to crack the journeyman scholar exam that he had purchased.

"What is this for…?" The Master asked, feeling an ominous omen.

"This, dear Master, is what is known as 'homework,'" Rui smiled pleasantly.

Yet Master Gurren could almost feel the despair and misery of countless students on Earth that had been evoked by Rui invoking the very word.

"I want these finished by today," Rui ordered him. "Good luck."

While Rui left the Master to mull his own suffering and misery, he isolated himself from the Martial Master atop a mountain in the Great Jrava Mountain Range as he focused on honing his mind.

Now that he had mastered the foundations of bending heaven and earth, he could finally venture into creating his own domain techniques.

His goal was to create domain techniques that would adapt his environment to his opponent. That had not changed.

'For now, let's go with the three most common broader fields,' Rui decided.

How could he adapt his environment to antithetically counter offense, defense, and maneuvering?

His mind sharply calculated all the potential principles in just a moment.

'Most offense relies on the heightened power,' Rui remarked. 'Crippling the exertion of power will certainly be useful. However, most offenses are also centered around collision damage. Thus, an environment that is antithetical to my opponent's collisions?'

These were definitely the two most promising principles on which to base an anti-offense domain.

"Ideally, I would like to do both, but…" He paused as his busy mind stumbled upon an interesting possibility. "What if I create a heavenly domain that places the weight of the sky on my target?"

He could use heaven-bending to alter the vectors of air "Kugh…!"

pressure and redirect them toward his target, forcing them to carry the literal weight of the sky.

This domain would have to be enormous, but Rui thought it was possible. The targeting scope of the domain would be limited to his opponent, but the size of the domain that would be employed into the domain would extend deep into the atmosphere around the battlefield. However, he wouldn't need to exert too much power, merely enough to alter the vectors of force by several degrees, causing them to converge into a single point.

He could directly employ the power of his breath to create a heavenly domain to leverage the sky itself to weigh down upon his hapless target!

A grand domain that harnessed the fury of the heavens themselves!

It would hamper their power because they would have to employ a considerable amount of power just to stand. It was a good way of sealing their offense.

'I can double the potency of the technique by employing earth bending to act upwards, grinding my target against the weight of the sky, forcing them to use all their power to not be crushed!' Rui realized. 'If they're not strong enough, it could become an offensive attack itself!'

Rui grew incredibly excited at the prospect of this technique as a way to hamper the offensive power of his opponent without actually having to face it in combat.

'However, the technical aspect of the technique will be quite mentally consuming, making me quite slow to react,' Rui realized. 'Which means this technique is only suited towards highly offensive Martial Artists who aren't extremely speedy. It's also ineffective against defensive Martial Artists because they don't require a lot of power in the first place, so they will be less burdened to resist it."

It was better to create domain techniques that were more specialized to handle both of those individually.