834 -823- Have a battle with me

In the next three days, Rozen didn't go anywhere, continuing to receive guidance from Scáthach and learning the runes.

Although the repair of singularities requires urgent attention, thanks to Rozen resolving the relationships of three singularities in just half a month previously, there was ample time, and the urgency was reduced.

With Scáthach's guidance, learning the primordial runes from the Age of Gods, which modern magus couldn't access, became crucial.

Even in Chaldea, there was no objection from anyone.

Particularly, Olga Marie, being a scion of a magical family and a noble in the association, didn't oppose. Da Vinci expressed curiosity about Age of Gods knowledge, and Roman was delighted with Rozen's opportunity, suggesting he take more time to fully master the runes.

Especially with the eighteen primordial runes, not seizing this chance would be a significant loss for the entire magical community.

As the primordial runes were long lost, even the great magus who revived rune magic only restored a few lost symbols. If someone could inherit the complete legacy of the primordial runes, allowing the continuation of the Age of Gods mysteries in the magical world, even the most cunning magus wouldn't object.

This reaffirmed that magus, fundamentally, were scholars rather than warriors. Even Mash was happy about it, not opposing Rozen spending time on this matter. Every day, while Rozen learned the runes, Mash, accompanied by Fou, remained vigilant or gathered information about the singularity.

Regarding the information about the fifth singularity, Rozen and Mash had learned quite a bit from Scáthach. This included details about the conflict and situation between the two divine nations.

The northern nation, formed by Celtic Servants, and the southern nation, formed by Greek Servants, had four remaining servents each. Scáthach had already seen through the true names of some of these Servants.

For example, the two Lancer-class Servants in the northern nation, the leader and chief warrior of the "Knights of Fianna." Ruling the northern nation was Queen Conchobar from the Ulster Cycle, holding the Holy Grail. It was she who exterminated all the indigenous people, leaving the singularity on the brink of collapse.

As for the king in the northern nation, Scáthach remained silent for a moment and sighed.

"That useless idiot will be dealt with by me. You will know his true name later."

This statement puzzled Mash, but Rozen had a faint guess.

"Could it be..."

Thinking of that possibility, Rozen's expression turned somewhat unpleasant. Nevertheless, if it came to that, he could only mentally prepare himself.

Prepare for a conflict with former comrades.

This was precisely why Rozen attempted to use "Heroic Spirit Summoning" to increase their forces.

However, achieving a genuine "Heroic Spirit Summoning" was indeed challenging. Even with Rozen's current abilities, it wasn't simple. As Scáthach mentioned, Servants with excellent compatibility were extraordinary, likely top-tier or even beyond tactical-level Servants.

If Rozen succeeded in "Heroic Spirit Summoning," it meant he would officially step into the level of summoning top-tier familiars, causing his strength to surge again.

Given this, realizing this technique will require a considerable effort.

Rozen wanted to master Rune Magic, mainly to draw parallels.

"If I can grasp the mysteries of the Age of Gods, my magical expertise will undoubtedly reach new heights. At that point, my understanding of Heroic Spirit Summoning will deepen, and the difficulty of realization will decrease."

So, in three days, Rozen successfully mastered all the knowledge of Rune Magic.

No, if it's just knowledge, Rozen took less than half a day to master it. The remaining two and a half days were entirely spent on practice and application.

With the cheating ability of the Mind's Eye, two and a half days were enough for Rozen to thoroughly grasp it.

With the Mind's Eye, Rozen could easily see all the magical flows, trajectories, release principles, and runic laws when Scáthach used runes. Even copying and using them smoothly would be possible. If combined with the ability to identify weaknesses and flaws in magic usage and immediately compensate for them, inheriting all the runes in two and a half days would be no difficulty.

That being said, this so-called lack of difficulty is specific to Rozen.

Because of the Mind's Eye's connection to the divine realm, Rozen could effortlessly achieve all of this. Otherwise, for an ordinary Mind's Eye, how could it possibly fathom the mysteries of Age of Gods magic?

It's more accurate to say that using the Mind's Eye to learn quickly is something only Rozen can accomplish.

In contrast, magus in the Automaton World, even if they reach the height of the Mind's Eye, have extremely limited vision and can hardly achieve such results.

It's evident that Rozen's Mind's Eye is quite rule-breaking and extraordinary.

This thoroughly astonished Scáthach.

"A mere human, repeatedly touching the power of the divine realm. You're truly a monster."

At this point, Scáthach's tone was somewhat excited, but mostly filled with lament.

Reaching the divine realm with a human body, strictly speaking, she was also of this type.

However, Scáthach paid a significant price for it.

The reason the Queen of the Land of Shadow claimed that Rozen repeatedly touched the power of the divine realm was that she saw through the true identities of Kinu and Gyokuto on Rozen.

As a deity slayer, Scáthach couldn't possibly fail to recognize Kinu and Gyokuto, right?

Notably, when Scáthach's gaze fell on Rozen's coat and the ring on his left hand, Kinu and Gyokuto were unusually restless.

This restlessness was named vigilance and fear.

Obviously, for divine spirits like Kinu and Gyokuto, Scáthach was too dangerous.

Although the Scáthach appearing in this singularity was just a Servant as a part of her true self, lacking the power to slay all the deities, due to this achievement, she seemed to possess the skill to slay gods, causing Kinu and Gyokuto to feel a hint of fear.

Of course, Scáthach wasn't someone who indiscriminately killed innocents.

"As a deity slayer, I won't aimlessly shoot down every deity. Still, if I can have a battle with a deity, it might be an interesting affair."

Scáthach surprisingly thought this way, so there was no intention to slay Kinu and Gyokuto. There was only a restless eagerness for battle.

This teacher turned out to be a battle maniac.

Like this, after three days, Rozen completely learned the mysteries of the runes.

Then...

"Come!"

Scáthach straightforwardly addressed Rozen.

"Have a battle with me!"

Scáthach made such a request.