"So, that device checks people's ability to passively gather Aether?" Ning asked confusedly after learning what the device did from the system.
According to it, the device was made up of a crystal that was highly concentrated with Aether. The white light was already in the crystal, but it was veiled behind the thick Aether.
Normally, it would remain that way, but when someone that could passively gather Aether placed their hands on it, the Aether in it drifted towards the surface of the crystal and the light would shine, letting the people know.
The device was an ingenious mechanism, but Ning still couldn't see the purpose behind it at all. "Why would it matter if someone can gather Aether passively or not? It's always the absorption skills that will help them the most anyway," he thought.
He thought what the middle-aged man did was useless and left the compound without any more thought.