Jin first caught Touya singing when the ice demon was on guard duty, and when the rest of them should have been asleep. His sensitive ears caught quiet words sung in a deep voice, and he tensed. When he finally recognized it as Touya's voice, he was barely able to keep himself from chuckling. Still, he knew that if he said anything, his friend would feel ashamed, and instantly stop. He rather liked the singing, so that was out. It was pretty…soothing…
The next thing Jin knew, it was morning, and his friend remained as stoically silent as ever.