Question: who is ilse in attack on titan?
Answer: Ilse Langnar (イルゼ・ラングナー Iruze Rangunā?) was a member of the Survey Corps. She was a participant of the 34th expedition beyond the Walls and was in charge of the left wing of the second brigade. She wrote very useful information about a talking Titan she encountered in a notebook that later aided Hange Zoë's research.