A shapeshifter after all, then. Castiel wasn't sure what to make of that. It wasn't a skill that demons usually had unless possession was involved, but this place had taught him long ago that he had to toss aside his own conceptions about how the world worked if he was going to follow along.

Changing one's appearance was still a dangerous skill if left to the wrong person. Castiel still couldn't be sure that Soushi wouldn't use an ability like that to trick someone, after all. He realized that it might not seem like any of this was his business from Soushi's perspective, but to Castiel it most definitely was.

"Lingormr asked if I had encountered you, and when I said I had, he asked how old you had appeared at the time. Then he explained that you had looked much younger when the two of you had met. I wanted to confirm that, as where I come from shapeshifters often prove to be troublesome." Most of them had been traumatized during their lives for one reason or another, but turning around and taking that out on innocent victims wasn't the way to handle that.

"Can I ask why you chose to make yourself appear younger that night?" Maybe Soushi had assumed that someone would be more willing to help him if he looked like a helpless child. That would make sense, as most humans had instincts that urged them to take care of the young.