Noticing the new side quest the system had issued, Xuandou could not help having a new thought.
Could there be weapons of an even higher grade than Immortal Artifacts?
Was SSS-rank not the upper limit of the Clan System's rewards?
Did that mean he would have opportunities to obtain even richer system rewards in the future?
Rather than just the things he had obtained so far?
The main reason this thought had suddenly occurred to Xuandou was the side quest's mention of the Minglin Boots resonating with the Dragon Vein, regarding an Immortal Artifact Upgrade.
After all, the Minglin Boots, like the Coiling Dragon Staff, were already the highest-grade weapons he had ever seen.
Weapons of this quality far surpassed the Time-Stop Demon Blade he had upgraded with a Ninja Tool Upgrade Card, and stood several tiers above the top-grade ninja tools supposedly forged by master craftsmen in the Shinobi World.
Kirigakure's seven ninja swords in the original story-Samehada, Kubikiribōchō, Hiramekarei, Kiba, Kabutowari, Shibuki, Nuibari...
They were as fragile as ordinary wooden boards before his Time-Stop Demon Blade, let alone the Minglin Boots, which stood far above even that blade.
Had his Time-Stop Demon Blade not possessed such astonishing quality,
Xuandou would not have designated the Time-Stop Demon Blade, the Imperial Seal, and the Imperial Jade Seal as three treasures to be passed down through the nation, symbols of his mandate from heaven.
And now, the quality of the Minglin Boots seemed capable of advancing another step beyond that of an SSS-rank Immortal Artifact...
Otherwise, the side quest would not have been called "Immortal Artifact Upgrade."
It would have used some simpler description instead...
Moreover, judging by how the Immortal Artifact Coiling Dragon Staff had been forged from various rare materials, including extraterrestrial meteoric iron essence and world origin stone