The card, measuring two fingers on each side, had the fine grain of jade, and Xu Huo's first impression upon seeing the diagram was that it was a jade token.
The materials he found did not mention what it was made of, nor did he explain it to the master engraver at the engraving shop.
It was only then that the busy master engraver in front of the equipment looked up and said, "A door access card that's been outdated for over a decade can't be replicated. Kid, who do you think you're underestimating?"
Upon hearing this, Xu Huo felt a sense of strangeness about the item in his hand, "Access Card?"