Between the five of them, to be accepted and rejected by the platform in the combination that they were, there could only be a few possibilities.
It was not their cultivation base. Liz's cultivation base was clearly higher than Helen's, and she hadn't been allowed in.
It was not their battle power, for Ronron's battle power was higher than everyone's but Alex's.
It was certainly not a lack of Origin, or some other thing that the platform could recognize immediately, as they all had those.
Combining that with the knowledge that the platform's aura was focused around his dantian, Alex had a certain thought.
Was it perhaps testing one of his spirit roots?
If that was the case, then which one was it testing?
He and his mother had all spirit roots, so they could not be used for this comparison at all. So, he would have to look at Battlesage instead.
'Battlesage has Metal, Earth, and Fire roots,' Alex thought.
