Sedated Perception.
Stunning Speed.
'Thanks, Alephee. I guess I needed that.
For some reason, I have this urge to get rid of this man. And the more I get in contact with him, the more I want to act on that urge.'
Eren confessed to Alephee while looking at Demonmir silently. He understood Demonmir's influence on him couldn't be ignored.
For example, Eren wouldn't normally gamble to enter a Battle Trance when the stakes were this high. But when he saw that his opponent was Demonmir, he felt strongly that he should annihilate him at any cost. The fact that his gamble paid off and entering Battle Trance was a huge success for him was a different matter altogether.
Alephee expected Eren to behave this way. She explained.
'That's natural. I bet Demonmir has those same impulses as well.