Dunis at that time, Ya Yu was renowned for arriving without a shadow and leaving without a trace.
Fu Qian was curious back then, wondering what kind of concealment technique it was that even he couldn't detect any sign of.
Now thinking about it, if Kisaragi Chie had just summoned a tarot card spread into an Eight Trigrams formation while talking to Nepheli, wouldn't it be somewhat similar to that scene?
Ya Yu, like Nepheli just now, existed only in Veheler's perception; that's why later during both noisy incidents, Ya Yu and Veheler were both not at the Lighthouse.
It wasn't that they didn't want to split up, they literally couldn't split up!
The methods of the Native Council are indeed various, a gift from Rom?
Fu Qian couldn't help but marvel inwardly, feeling that the trip was well worth it.