Ren winces. What would Sojiro even think of him, if he knew? If he was in his right mind? He usually tries not to think about it.

"I wonder that sometimes," he offers hesitantly, feeling his way. Making conversation with someone who's all there and wants to talk to him feels like stretching an atrophied muscle. "Like... if Boss shows up, or Lala-chan. Or Crow's dad. We've taken all their places."