The sound makes Kaworu laugh. It's bit barking and a bit raspy but it's it feels light and easy. He often feels that way around Midoriya. And it's nice to have that brief moment as the conversation turns serious.

There's a frown as the angel sets the mug down and observes Midoriya, trying to calculate where that line of thought came from. "I won't let anyone hurt you or the people you know. If you need help, call me. I'll get rid of the villain."