For a moment Kanji just gapes at him, feeling like he's just taken a hard punch to the chest. He doesn't even know what to do with that comment, just that it hurts. His dad has been dead for a couple of years - an anuyerism, fast, unexpected. He wasn't even there - now but that still really hurts. And now to have some strange say shit like that? That is a low fucking blow and he doesn't even understand why it would happen.
"Why would you say that?" Its all he can manage, not even the usual shouting that he hides pain and fear behind. Just unhappy confusion.