A few seconds later, after thinking with his human mindset, Xiu Er came to a conclusion that even he found hard to accept.
First, the Holy Grail War.
As the name implied, it was a battle fought by a group of people called "Masters" over an omnipotent wish-granting device. This wish-granting device was the Holy Grail, and only the last surviving team—the "Master and Servant"—could possess it and fulfill their wish.
Likewise, the plot of No Game No Life: Zero was also a battle fought by a group of people over something called the Star Cup. That group consisted of beings known as Old Deus.
And in a sense, the Star Cup could also be considered an alternative omnipotent wish-granting device.
Because once one of the Old Deus obtained the Star Cup, they would become the Sole God of that world. From then on, the Sole God could alter the entire world however they pleased.
The only difference between the two was the scale of the war.
One was a village brawl involving at most a dozen people, while the other was a global war encompassing every race.
Conclusion: Star Cup War = Holy Grail War.
"..."
After reaching that conclusion, Xiu Er fell silent for a long time.
"System, delete this record."
"Understood. Deleting..."
As the memory from earlier vanished, Xiu Er let out a long breath.
Just then, the drones sent him intelligence that caught his interest.
"It's Drone Number One..."
It was the first reconnaissance drone Xiu Er had built in this world. Its mission was to follow a Master named Shishigou...
Since last night, everything Shishigou did had been under Xiu Er's surveillance.
Yet Shishigou himself was completely unaware of it. Even his Servant, Mordred, had failed to notice the hidden gaze watching them.
These