Oh! He smiles at Luz, the colors around him brightening up immediately. "Yes, I'm okay." There's still a bit of a dark spot close to his body, but most of it looks yellow. "I've just been thinking about... a lot of things."

He doesn't like to lie, especially not to a friend, but... well. He's not sure how much he should tell her. He doesn't want to worry her! The bright yellow starts to fade a bit at the thought. "I'm sorry, it's all... complicated."