Isekai Adventure in the Dimensional Cube

After studying the Holy Dragon Sword Skill, Reiger's interest in supreme-grade sword techniques had grown immensely.

In this world devoid of an underground city to explore, Reiger desired to grow rapidly as before, and mastering sword techniques had become a necessary endeavor.

Otherwise, the only way for Reiger to grow swiftly was to enter the battlefield, where plenty of enemies awaited his conquest.

This made Reiger realize that perhaps when he later employed Dimensional Travel to other worlds, he might encounter similar situations.

Not every world was like the Earth Mistake World, with abundant monsters threatening humanity that he could vanquish.

If he were to travel to more peaceful worlds in the future, with insufficient enemies to conquer, Reiger's progress would come to a halt.

This was something he had to avoid.

Therefore, Reiger felt that his current priority was to find a sword technique to study and ensure that his growth did not stagnate.

As long as there were sword techniques to learn, Reiger would not have to worry about his development coming to a standstill, no matter which world he traveled to.

Among all the available sword techniques, those studied after which promised the fastest growth were, undoubtedly, the supreme-grade techniques.

That was why Reiger began to seek a supreme-grade sword technique to master.

Originally, the Holy Dragon Sword Skill would have been perfect for Reiger, but unfortunately, it lacked the most crucial breathing method. Although Reiger planned to continue practicing the swordsmanship part of the skill, for future growth, he still needed to find a complete supreme-grade sword technique to study.

Under these circumstances, Reiger wondered if he could find a supreme-grade sword technique to master at the Royal Market.

However, as it turned out, even this high society market, which was only open to nobles and wealthy merchants, proved difficult to procure a supreme-grade sword skill from.

"An auction?"

Reiger thought for a moment and then asked the shopkeeper.

"When is the next auction?"

The Royal Market held an auction every so often, a fact well-known to many.

The auction was organized by the backers of the Royal Market, and the items that appeared there were generally precious rarities that would not be found on the market, sometimes even world-unique treasures that attracted fierce competition from major nobles.

It was said that when the auction was held, even Dukes and members of the royal family might attend.

Since the shopkeeper had mentioned that supreme-grade sword techniques would only appear at the auction, Reiger naturally wanted to take a look.

But—

"Not every auction features a supreme-grade sword technique," said Ai En, his words coming suddenly, without any warning.

"Is that so?"

Reiger paused in surprise.

"That's right," Ian confirmed seriously with a nod. "Supreme-grade sword techniques are rare to begin with, and most of them are in the hands of the kingdoms' royal families and major nobles. Some particularly powerful supreme-grade sword techniques are even regarded as important legacies, such as the War King Sword Skill of the royal family of the Genas Kingdom."

The War King Sword Skill, mentioned earlier, was the legacy sword skill of the Genas Kingdom's royal family, which could stimulate Spiritual Power to be used against enemies upon mastery.

This sword skill was mighty, far stronger than the average supreme-grade sword techniques, and the fact that Genas Kingdom's royal family continued to pass it down as a legacy skill fully proved its unique value.

Sword techniques of this caliber, regarded as important legacies by royal family members or the offspring of major nobles and continuously inherited, were typically more potent than ordinary supreme-grade sword techniques.

But this did not mean that other supreme-grade sword techniques were common goods.

Minor nobility, even if they aspired to have a supreme-grade sword technique as a legacy, did not have the means to do so. Only royal families and major nobles had legacies or even several supreme-grade sword techniques in reserve.

After all, sword skills were sometimes a test of aptitude; not everyone was suited to learn them.

The Holy Dragon Sword Skill was one such example—extremely difficult to learn, demanding considerable innate Magic Power, with very stringent requirements. Even if one wanted to pass it on, finding someone suitable to master it was not always possible.

The supreme-grade sword techniques passed down by royal families and major nobles were the same, not necessarily suitable for all their descendants.

In these instances, having other supreme-grade sword techniques for family members to study became critical.

If not, many descendants who did not meet the requirements to learn the legacy sword techniques might waste away, reduced to mastering only high-level techniques, with little chance of achievement in their lifetimes.

For this reason, both royal families and major nobles habitually collected supreme-grade sword techniques. Whenever one became available, they would vie for it, to reserve for a suitable descendant to master.

As a result, supreme-grade sword techniques were virtually monopolized by those of royal houses and major nobles, and the few that ended up on the outside were pitifully scarce. Those families in possession of a supreme-grade sword technique were extremely reluctant to sell, treasuring them greatly.

"If the customer wishes to acquire a supreme-grade sword technique at the auction, it would truly depend on luck," explained the shopkeeper.

"Perhaps someone has fortuitously acquired a supreme-grade sword technique but lacks the funds and personal need, so they bring it here to auction."

"Or maybe a noble house has fallen into decline and must sell a supreme-grade sword technique from their collection to maintain their livelihood."

The shopkeeper continued to explain to Reiger.

"Such situations are naturally rare, so even at the Royal Market's auction, it's possible that no supreme-grade sword technique will be auctioned for years, and sometimes decades may pass without one appearing."

In other words, Reiger's plan to procure a supreme-grade sword technique from the auction was also up in the air.

"This is quite troublesome," Reiger said, massaging his brow. Ai En and Ian, standing behind him, lapsed into silence as well.

Just when Reiger had no idea what to do, the shopkeeper seemed to think of something and hesitated to speak.

"This store does have an incomplete, top-tier swordsmanship technique. Would you like to have a look?"

That's what the shopkeeper said.

"An incomplete, top-tier swordsmanship technique?" Reiger's spirits lifted as he said, "Bring it over, let me take a look."

The shopkeeper responded with an acknowledgment and then hurried into the store, bringing out a book of swordsmanship techniques.

"This is it."

The shopkeeper handed the book of swordsmanship techniques to Reiger.

Reiger took it and glanced at the cover where the title was.

With that look, Reiger's eyes widened.

The cover of the book clearly bore a name — "Holy Dragon Sword Skill".

Yes, that's right.

It was the Holy Dragon Sword Skill that Reiger knew about.

"How, how can this be?"

Reiger was astounded.

It was then Ai En and Ian, who perhaps were also intrigued, peeked over and upon seeing the cover, both revealed expressions of sudden realization.

"So it's this top-tier swordsmanship technique?"

"No wonder it's here in the store, it must be the only one that appears."

The female knight partner uttered these words.

"You know of this technique?"

Reiger came to his senses and looked towards Ai En and Ian.

"Know it."

Ai En answered succinctly.

"This is a top-tier swordsmanship technique created by Afastin Tusenlo, known as the strongest Sword Saint and Dragon Sword Saint four hundred years ago," Ian explained. "This technique is extremely famous, to say it's the most renowned on the continent wouldn't be an exaggeration."

What was this all about?

Reiger was thoroughly confused.

"You didn't know?" Seeing Reiger's bewildered look, Ian asked in astonishment, "This Holy Dragon Sword Skill caused a significant conflict four hundred years ago. Many Sword Saints died in that battle, numerous powers fought until they were bloodied and bore deep grudges against each other. The grudges have yet to be resolved, the fighting still continues to this day."

This seemed to be a matter recorded in history books, well-known to many.

The fact that Reiger didn't know was because the original owner of his body didn't care about history, and being from the countryside didn't help with his knowledge.

Only now, after hearing Ian's explanation, did Reiger finally understand why the Holy Dragon Sword Skill was the most famous on the continent.

First, because it was powerful.

Second, because the conflict it sparked four hundred years ago had a significant influence on the world.

Owing to this, Reiger also learned why the Holy Dragon Sword Skill was incomplete.

Not because Yuri had removed the breathing method and kept it hidden elsewhere, but because of the conflict from four hundred years ago.

"Four hundred years ago, after the death of the strongest Sword Saint, the Holy Dragon Sword Skill he created drew the covetous attention due to its sheer power,"

"The scrambling for it was fierce, involving powers from across the continent and many Sword Saints."

"Subsequently, many died, and the major powers became enemies. The Holy Dragon Sword Skill got damaged in the chaotic battle, with its most important breathing method destroyed, leaving only the swordsmanship to be passed on."

Ian informed Reiger of this.

"Four hundred years later, today, the extent of the circulation of the swordsmanship part of the Holy Dragon Sword Skill has increased significantly. Not only in the royal capital Yaruf, but also in slightly larger cities, people keep copies of it."

As it happened, Yuri's family's library contained a copy of the technique, which Reiger had seen.

Reiger had been completely mistaken before. This technique wasn't deliberately left by Yuri for him to practice but was just an incomplete copy stored there.

There were many such incomplete copies, and this store had one, too.

Indeed, Yuri was considering whether Reiger should switch to practicing swordsmanship, but she was far from being able to casually offer a top-tier swordsmanship technique for Reiger to practice.

"The Fransel family is a noble family that once fell into decline and only rose again in recent years under the leadership of the young miss. There are no top-tier swordsmanship techniques passed down within the family."

Ian told Reiger this.

"Mr. Reiger, if you wish to practice a top-tier swordsmanship technique, it won't be so simple."

With that, Reiger's heart sank.

This matter seemed really troublesome.