If the secret dimension required Baiyi to perform the Archmage's second Territory to unseal, then all he could say was "uh-oh".
This was because he could not do it.
Baiyi was just as capable as a Demigod-level being because he could use Void Energy, but a Territory was a different ballpark altogether. For Territories, theories and instructions were useless; they were no replacements for the epiphany needed to get a Territory.
A Territory was considered a metaphysical subject; it was not something he could get by shuffling through the memories of the Voidwalkers and watch them get their own territories.
Since he was summoned to the real world by Little Mia, Baiyi had never tried out his own Territory. He had imagined how it would be like, but he never found the chance to put it to practice.
TL'S MUSINGS:
Ooh, I love Awakening moments! Like, really, really love them!
You guys already know that I automatically insert myself into the story sympathetically when I read (I'm the 34th Voidwalker, after all!), so if I get to see someone awakening their powers and stuffs, particularly at the pinnacle of a build-up, it makes me feel earnestly congratulatory and proud! I don't even know why and it's not like it's me, but maybe that's precisely the point: there are so many things that I can't do due to old mediocrity, so it's great to see someone else does it instead. It's not even just fictional characters' crowning moments of awesome that move me— real world does too. I'm even more mediocre in the real world, after all! And if "awakening" requires a sort of abrupt, exclusive insight for an epiphany, then my chance is slimmer than anorexic (I seem to be borne without a sort of instinct...)!
So... congrats, Baiyi!
But don't think this is it, True Believers! This is just a local maximum point! A bigger event is unfolding in the next few chapters— read on! And prepare your own epic fighting music playlists!
P.S. Have you imagined your own Awakening scene before ( surely I can' be the only one to have fictional alter egos...!)? What did you imagine it like?