“I can’t help it. I get sleepy when I use my power.”

“Isn’t that problematic?” Tomochika asked, a little concerned. After all, right now her safety was resting entirely on that power. It wasn’t surprising that it would be a source of worry for her.

“Not really. It’s not so bad that I couldn’t stay awake if I really wanted to, and I can still feel people’s intent to kill when I’m asleep.”

-Volume 1 page 62