a Chinese internet fans group of the vitual youtuber group A-SOUL. AU is a homophone same to "A友", meaning literally "the friend who is an A-SOUL fan". Unlike the insulting name "A/" meaning literally "the stack who watches A-SOUL", it is a more friendly name to call them.
"Why does AU appear in this place?"
by JIAXINTANG[Infwww] July 05, 2022