He could see the moment they noticed his aura happen in real time. Their eyes widened, their brains unable to comprehend an SSS-rank being standing in front of them.
They'd never felt anything like that, but it was unmistakable. Just the physical pressure alone that erupted from his body, as if he was more real than anything else around him, was enough confirmation.
He moved before they had finished processing what they were looking at.
He stamped his feet into the ground and energy erupted from him, spreading out in a wave that covered the ground and the sky simultaneously, creating a mirror-like surface that rose on all sides and sealed above them like a box being closed.
The reflections inside it were perfect and slightly wrong, the way all mirrors are slightly wrong, showing everything in all directions.
