Thread:MidorikageMirror/@comment-24072017-20160716102653/@comment-27037280-20160716113310

Basically it means when they became sentient. When they first could talk normally, well, when Aphmau noticed they could first talk to her normally. For example, Brendan becomes aware in episode 5, you'll see what I mean when Aphmau talks to him in that episode. Though, not everyone has a time when they became aware. That's because they were already aware before Aphmau met them.