Disclaimer: I've gotten dumber and my English isn't the best despite being a native speaker.
On page 4, bottom right bubble.
"So you're saying we're just on a completely different level, right?"
I read that as Akira having just praised the commoner students.
Because the entire dialogue went:
Akira: There's nothing more I can teach you!
Twintails: So you're saying we're just on a completely different level, right?
At that point, it sounded as if Akira was praising them.
Akira: No, no, no, it's the opposite, the exact opposite!
Then I realized Twintails was saying Akira was implying he was better than them.
"So you're saying we're not even on the same level, right?"
This would give the line a more negative connotation.
"So you're saying you're on a completely different level, right?"
Even more negative, implies Akira is putting himself higher than the rest, and would make Akira's following line matchup better.