With one quick summation, Snake's opinion of Heiji rapidly changed. Heiji was intelligent and enjoyed building on that intelligence with reading. His tone changed to genuine interest at sharing a topic with someone who understood.

"That's the disease where people think they have insects crawling on them or fibers, right? You're right that it would be difficult to pin down." He tapped his finger on the cover of his book. "On the one hand, it's basically a symptom of psychosomatic illness. On the other, there's the potential for it to be a separate disorder. It's quite remarkable what can go on in the human mind."