Chapter 10: ITS GACHA TIME!
Justeaze was no longer as cold and mechanical as she used to be. Having lived in the Matou household for so long, she has gained some understanding of how to discern human emotions. Upon seeing Shinji's peculiar expression, she quickly interrupted her explanation and changed it into a question.
After learning the reason from Shinji's mouth, Justeaze smiled and asked in response, "Who told you that only Hassan can be an Assassin?"
"Huh? Isn't that the case?" this time, Shinji was surprised.
Who told him? Of course, this was Fate's book.
In the Holy Grail War in Fuyuki City, it is normal for Hassan to be the only one summoned as an assassin.
Of course, there are some exceptions. In the Fifth Holy Grail War, Caster, who was a Servant, broke the rules and illegally summoned the fake Assassin, Sasaki Kojiro.
However, Caster's true name was Medea, a witch who was naturally a rule-breaker. It was not surprising that she broke these rules. How could Shinji, a rookie magi, have the ability to break these rules?
"No," Justeaze explained, "Indeed, as you said, the Assassin class is a catalyst, but catalysts have priorities. Although the Assassin class has high priority, it can be overturned. In theory, by preparing a suitable catalyst in advance and modifying the summoning chant, you can summon a Heroic Spirit other than Hassan."
"I see." Shinji suddenly realized, "You must have already prepared the modified summoning chant."
In the parallel world of the Fourth Holy Grail War, in "Fate/Apocrypha," the Holy Grail system of Fuyuki City was stolen and leaked after the Third Holy Grail War, and various subversive Holy Grail Wars emerged around the world. In these Holy Grail Wars, the characteristics and Noble Phantasm abilities of the Hassans, except for the First Generation, were exposed, making them easy targets and the first to eliminate. Therefore, the magi put effort into researching the Assassin class and discovered a method to summon other Heroic Spirits.
In this timeline, no magus has conducted similar research; therefore, there is no method for summoning other classes. If there is someone who can find such a method, it can only be Justeaze herself, who is the core of the Holy Grail system.
"That's right." Justeaze's answer was just as Shinji had expected.
Shinji laughed and chuckled heartily. "Then Assassin is undoubtedly the best choice. Without the limitation of Hassan, Assassin is the most versatile and adaptable class."
Justeaze nodded. "As long as they can kill in non-frontal combat, anyone can assume this class. And those famous heroes, not many of them are truly upright and have never used any dishonorable means."
Outside the legends of "The Cattle Raid of Cooley," there were stories of Cú Chulainn betraying trust and assassinating his friend Ferdiad, which aligned with the requirements of an Assassin.
The only remaining question was—
"There is more than one Heroic Spirit in 'The Cattle Raid of Cooley' with the aptitude for Assassin, and the most typical one would be Queen Medb, who conspired to kill Cú Chulainn. If she were to be summoned, it would be the worst outcome. I might even command her to commit suicide in a fit of anger."
" It is highly unlikely," Justeaze reassured as she unrolled the sheepskin parchment written in Gaelic. "This is just one volume of 'The Cattle Raid of Cooley,' depicting Cú Chulainn's journey to the 'Land of Shadows' to learn his skills. It doesn't involve irrelevant characters."
Shinji's mood brightened. "I have no issues then. When do we begin the summoning?"
"You rest for three hours, and I'll prepare the summoning ritual," Justeaze replied before leaving her room. To avoid arousing suspicion, she usually operated in a physical form.
Three hours later, in the basement of the Matou Residence.
The worm nest was demolished and rebuilt into Justeaze's magecraft workshop.
On the specially constructed floor, a magic circle was meticulously drawn with the prepared blood.
Various magical gemstones are arranged in a regular pattern at each node of the magic circle. Even the cheapest gemstone among them was enough to sustain an ordinary person for 20 years.
In the center of the circle, an old parchment scroll served as the catalyst. Protective magecraft that preserved the parchment was unraveled.
Justeaze created this summoning circle. It is more complex and expensive than traditional summoning circles but places a lighter burden on the summoner.
Shinji placed his hand on the most crucial magical node and chanted it with an unprecedented solemn expression.
"—I declare!"