The next day.

Louis and Olivia walked out of the tree hollow, looking exhausted.

The little swan felt somewhat muddled and said wordlessly:

"At least we can barely move."

She didn't quite understand why Lumi set up such training.

After all, this kind of high-pressure training should be more suitable for professions like the Nine Swords that temper the body.

For a mage like her, it always felt somewhat inappropriate.

But Lumi clearly stated that she must honestly undergo the training because it concerns her future development.

The little swan was receptive to persuasion, and seeing the head maid speak so convincingly, she reluctantly agreed.

If given another chance, she would definitely hold firm and refuse.

"It hurts..."

The little swan held her head, her expression not very pleasant.

Louis, beside her, wasn't doing much better either.

The little swan merely increased the gravitational spell by a few times, whereas he directly amplified it to fivefold.

To put it bluntly, if an ordinary person encountered such gravity without the protection of blood energy, their internal organs would have issues long ago.

Five times gravity does not simply mean increasing body weight by five times.

Blood circulation, organ weight-bearing, and brain blood supply would all have problems.

Before training began, Lumi and Louis made it very clear:

"This training focuses on honing your blood energy's intensity and further enhancing combat endurance methods, especially the gravitational spell."

"The constantly activated gravitational spell forces you to focus most of your energy on maintaining a high-speed circulation of blood energy."

"Louis, you like relying on your succubus heritage's combat endurance too much. Next, you need to adapt to fighting as a 'weaker' person."

These words caused a slight change in Louis's expression.

Lumi actually made a valid point; he did rely too heavily on the succubus physique's regeneration, treating skills as normal attacks.

Someday he would tire.

Once the combat intensity becomes such that he cannot even maintain basic blood energy supply, he will face a predicament—

He lacks effective methods to target enemies when he can only use normal attacks.

Recalling his previous actions while capturing the Kuppari bird, he had some realization.

Lumi hoped that he and the little swan could complete further skill cultivation.

"From fierce swordsmanship being unstoppable, to wielding the heavy as if it were light, then to wielding the light as if it were heavy?"

Through this series of training, Louis vaguely sensed the training effect Lumi wanted them to achieve.

It was somewhat like the growth pattern described by Elder Jin in his writings of Invincible.

At the beginning, learning a wide array of martial arts or magic, striving to make up for one's shortcomings in all aspects.

Both Louis and the little swan started at this stage.

Louis had mastered no less than thirty or forty different martial arts, while the little swan's was even more impressive, having mastered over 100 spells.

It could be said that to reach their current level, they accumulated enough foundation to face opponents under various circumstances.

But it was still not enough.

After delving into various martial arts and magic to a certain level, they both needed to enhance their control over martial arts and magic, allowing their skills to reach a level of masterful control.

Currently, they've already set one foot into this realm.

It's not due to any talent, but the restraint vest they're wearing.

The restraint vest, which could limit extraordinary power, was certainly different from the ones originally used to restrain dangerous criminals.

Now it merely limits, not constrains.

Through this method of restriction, Olivia and his power were reduced to a very subtle level.

Want to control at will?

The simplest way is to restrain you from the beginning, no matter how much you unleash, the upper limit is there.

And because of the significant consumption, you're forced to meticulously control your own power.

This is entering this realm through external means.

When Louis and the little swan can use their resources in this state on the most critical parts and successfully complete on-site trials.

Then the training needs of this stage are met.

After this comes wielding the light as if it were heavy.

Using the least amount of force to deliver the greatest damage.

Ultimately...

Reaching the highest state that Nine Swords professions can achieve.

That is skill permanence.

This is the realm where one is not bound by forms, where formlessness wins over formation.

A typical example would be Jino.

To this day, Louis has yet to transform the burst state of Jino's breathing method into a permanent state.

It's important to know that it has been a long time since he learned Jino's breathing method.

But even after such a long time, he still hasn't advanced the breathing method into a state of permanence like Jino has.

Louis gazed at the little swan.

As for the mage side, it's even more unnecessary to mention.

Louis was very curious about what a permanent state would look like for a mage like the little swan.

The two temporarily weakened unfortunate folks took quite a bit of effort to successfully capture the second beast.

...

The third day.

Louis was the first to complete sustained control over his own blood energy acceleration.

Permanent ability, get!

That night, amidst fatigue and disorientation, faint glows appeared on the little swan's body.

Magic power circuits emerged on her body.

To Louis's astonishment, the little swan transformed her spiritual power's inner circulation into magic power outer circulation.

It was also the first time Louis heard from the little swan that this was a technique frequently used by combat mages called [Magic Enhancement].

Those combat mages have, over the years, developed all sorts of techniques to return to their essence.

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