Tracing the Origins
During his entire time in the alchemist guild, Jiang Ming had requested for the GLCS to utilize its mapping and function to identify the three people's origins.
It took a while to investigate but GLCS never failed its job. While he was refining the fourth-rank pill, Jiang Ming had received another system prompt from it, indicating that it had traced their origin.
Thus, the moment Jiang Ming left the alchemist guild, he asked the GLCS for specific details.
Ding!
<The three people's origin are suspected to be from the Di Clan>
<Evidence can also be found in the tattoo their left arms>
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'Left arm tattoo huh?' Jiang Ming thought. It was common for these types of people to have some signal or symbol to indicate their origin to their companions.