[ that he doesn't lie is a good sign. subaru visibly relaxes, though the changes are minuscule. he keeps his distance still, less out of fear or judgment and more out of respect for the fact that he'd just dropped a pretty indelicate bomb on the boy. accounting for his worry over who might be nearby, subaru starts with the less obvious thing: ]

You don't have to say what. I was just curious.

[ odd thing to be curious about? definitely. ]

I suppose you can think of me as something like an exorcist. It's my job to know.