Meanwhile, at the Wandering Sea base's central control room.
The light of the summoning circle dyed the entire room a dazzling red.
"Oh? This Spirit Origin reaction... Looks like we summoned a rather powerful Servant this time?"
Looking at the figures on the tablet in her hand, Little Da Vinci let out a whistle. Her little leather boots lightly tapped out a rhythm against the metal floor as she spoke with some excitement.
With their upcoming journey to the Atlantic Lostbelt, having a powerful Servant to assist them was certainly rare good news.
"Isn't that only natural? With Mr. El-Melloi's help, I improved the Heroic Spirit summoning formula as well. It's only normal to draw a somewhat stronger Heroic Spirit, isn't it?"
Shion pushed up her glasses, her tone carrying the absolute confidence in technology unique to an Atlas Institute Alchemist.
"No, the improvements alone shouldn't have had such a powerful effect—"
But a weary, hoarse voice interrupted her.
Lord El-Melloi II extinguished the cigar in his hand, pressing it into a portable ashtray. His expression was graver than ever before. "I merely optimized the Heroic Spirit summoning system based on Fuyuki's system, adjusting Reishi conversion efficiency and coordinate stability.
In theory, this should only make the summoning more precise, rather than affect the strength of the summoned Heroic Spirit itself... This phenomenon was most likely an active intervention by the Counter Force—"
Lord El-Melloi II took a deep breath and continued.
Just as he had said, he had merely used the materials obtained from the Matou—or rather, Makiri—family in Fuyuki City, combined with Atlas Institute technology, to improve Chaldea's summoning formula to a certain extent.
Its purpose was only to summon Heroic Spirits better suited to their tactical needs based on calculations—but that was all!
"The Counter Force? Could