Cohen then raised his hand and made a grasping motion in the air; that demon was lifted up by an invisible force, hanging in midair.
It was still struggling, but those black flames had already grown as weak as a candle in the wind.
"Spirit pollution is the most troublesome method of Abyssal demons, and also what you most need to experience personally." Cohen's gaze fell on each student's face. "Next, you'll go up one by one, feel its Spirit pollution, and then try to resist it."
Someone's expression changed slightly.
"Relax, you won't die." Cohen's tone was as flat as if he were commenting on the nice weather. "I'll be watching and won't let it truly hurt you. But don't even think about killing it; this demon is a live specimen with research value. It mustn't be killed."
He waved his hand, and the demon was sent to a spot ten steps in front of the crowd, suspended in the air.
"Who's first?"
The crowd looked at one another; for a moment, no one answered.
