Talk:Date A Live:Volume 11 Chapter 7
“…Kurumi? Why are you wearing an eye patch?”
[Please don’t worry about it.]
“Was it hurt or something?”
[Please don’t worry about it.]
“But…”
[Please. Don’t. Worry. About. It.]
She said it with such a strong tone, he decided to keep quiet.
Based on Ratatoskr's Daily Observations Case 3, I'm guessing Kurumi had a chuunibyou phase.