I’ve heard some really crazy theories about Asahina being The Mastermind
Whether it was done in revenge to the Future Foundation for not being able to save her brother, that she’s been switched out by another competitor at some point, or maybe was the victim of some evil A.I. mind-jacking (this Reddit thread raises some pretty intriguing points favor of that notion)
Personally, I find it an unlikely out-of-left-field twist on several levels, but one thing did occur to me for the brief moment I allowed myself to entertain the thought: if everyone is really underwater in a building so close to collapsing, who else would be able to swim back to the surface?