Just as Naoki's consciousness began to fade and he concentrated on opening his magic circuits, his physical body in the real world was undergoing drastic changes visible to the naked eye, and Kayneth, who was closest to him, noticed it first.
"Such intense and overwhelming Mana... It seems his magic circuits are extremely efficient at converting life force. Is he focusing on quantity with slightly lower quality, or focusing on quality with slightly less quantity, or... both?"
Kayneth had seen too many scenes of magic circuits awakening, and he had helped others open their magic circuits many times. He had also encountered Naoki's situation once or twice, and one or two of those individuals had gone on to display quite unique talents at the Clock Tower.
"The Natsukawa family... it seems there's no record of such a Magus family in the Clock Tower's archives. Could he be a first-generation Magus?"
If so, then Naoki's Magecraft potential is incredibly valuable. First-generation Magus often possess extraordinary talent. If the lineage is accumulated and combined with a powerful Magus mother, their descendants should have even more remarkable abilities.
Could he have stumbled upon an extraordinary talent during his visit to Japan this time? And this talent came to us on its own initiative?
Even the usually composed Kayneth couldn't help but feel a bit of excitement at this moment.
Soon, Naoki opened his eyes.
*WHOOSH!*
Without any warning, the expressions of Lancer and Arthur changed drastically, as if they had encountered a wild beast. They averted their gaze from Naoki. Kayneth, who stood in front of Naoki, also turned pale and hurriedly moved behind him.
Quickly calming the Mana in his body, Kayneth stared at the still-unconscious Naoki and couldn't help but mutter: "How could this be... Along with the opening of his magic circuits, Mystic Eyes have also awakened simultaneously?!"
Mystic Eyes.
They transform the eyeballs into magic circuits, changing the passive function of receiving external information into the ability to actively influence external things. In other words, all targets within the range of vision will be affected by the Magecraft, and it is Magecraft that can be performed simply by "looking."
In the world of magic, Mystic Eyes are not rare. Most top-tier Magus possess artificial Mystic Eyes. There is even a family at the Clock Tower that specializes in studying Mystic Eyes. Mystic Eyes alone are not enough to make Kayneth and the two Servants change their expressions.
What truly caused Kayneth's expression to change drastically was the color of Naoki's eyes at this moment—they were like clear gemstones, as transparent as the sky.
"Natural Jewel-Rank Mystic Eyes?!"
This time, even Sola was shocked.
All things are divided into several levels, and so are Mystic Eyes. In terms of ranking, Jewel-Rank Mystic Eyes are second only to the highest-ranking Rainbow Mystic Eyes. The Mystic Eyes currently recognized by the Mage Association are mostly those possessed by gods in myths and legends, such as Balor's Mystic Eyes of Death Perception.
In this modern era, where mystery is in decline, even inferior Gold-Rank Mystic Eyes, let alone Jewel-Rank ones, are considered miracles that cannot be reproduced and are worthy of being designated for sealing. And Jewel-Rank Mystic Eyes... They haven't even been recorded in the Clock Tower's history for the past hundred years.
"Kayneth—"
"Come to my side, Sola! Be careful, don't let him see you!"
Kayneth said while setting up multiple barriers, but even he wasn't sure if his barriers could withstand the power of Jewel-Rank Mystic Eyes, so he could only do his best.
After maneuvering around, Sola finally reached Naoki's blind spot. After taking a few breaths, she asked, "Kayneth, his Mystic Eyes... Why do I feel like my entire body isn't my own after just a glance?"
"That's the ability of his Mystic Eyes. Look at Lancer and Saber."
Lancer and Saber?
Sola looked at the two Servants and was shocked to find that both of them exhibited symptoms similar to demons, indicating that their etheric bodies had been severely eroded. However, they are Servants, noble spirits who have left their names in human history and ascended to the Throne of Heroes. How could they be damaged?
"Could it be—"
"You've realized it, Sola." Kayneth frowned. "The power of those Mystic Eyes might be able to corrode all spirits and souls within the user's line of sight, forcibly damaging them and turning them into evil spirits. The effect is so strong that it can even affect us, living beings and Servants. It's truly a Mystic Eye that can attack the soul."
With just one glance from those Mystic Eyes, even if you are a living person or a saint, your soul will be eroded and turned into an evil spirit filled with hatred, anger, and other negative emotions. A body without a soul will become a corpse that can be manipulated at will.
And if the target is an ordinary spirit, these Mystic Eyes will have no equal.
A true soul killer!
"Such a vicious Mystic Eye. Why did he awaken these Mystic Eyes?"
"Mystic Eyes possessed from birth are generally influenced by two factors: the holder's past experiences or the holder's origin. I think Naoki, who was once an ordinary person, wouldn't have any special experiences. In other words, it's his origin that gave him these Mystic Eyes."
Origin, the talent that most influences a Magus's abilities aside from their magic attributes.
What is Naoki's origin, which could awaken such Jewel-Rank Mystic Eyes?
Listening to Kayneth's explanation from behind, Arthur suddenly thought of a possibility.
'Could it be Manaka... If the young Beast VI interfered with his mind, would his origin also be affected?'
This possibility isn't impossible. As an evil young girl and the daughter of an origin, no one could imagine how deep and vast the impact of Manaka's dual identity would be on an ordinary person like Naoki.
But regardless—
"A pair of Mystic Eyes must be temporarily sealed now." Kayneth said, "If we let him use their power, it's only a matter of time before this city falls. And if they are used in the Holy Grail War..."
Mystic Eyes that can defeat Servants with just a glance or even damage them and turn them into evil spirits. This is already too extraordinary for the Holy Grail War.
What Kayneth regrets most now is signing that contract, which prevents him from harming Naoki. Otherwise, the first thing he would do is destroy those Mystic Eyes!
Even if they are incredibly valuable Jewel-Rank Mystic Eyes!