Across the river of time, standing in the past, the Great Impermanence of the End of the World unexpectedly recognized Mazao on the other side.
It wasn't just me; Mazao's expression changed too, surprised and confused.
That the other party could recognize Mazao wasn't all that significant. It's quite possible that Mazao had his own notoriety in the Doomsday Era. Our "fishing" strategy over the past month was also based on the premise that the other side knew of someone like Mazao.
However, the fact that the other party clearly didn't see Mazao's face directly and could deduce that the person standing on the opposite end was Mazao based only on the experience of being spied upon through the veil of history indicated that his understanding of Mazao was not just hearsay but from actual encounters, having an intimate understanding of the Power of Return.