[Indeed, Setsuna just happened to pass by. Despite its size, this prison "feels" small enough once you get used to it. He frequently encounters familiar faces, so this is no longer a surprise.
He smiles a little from the distance; standing by the entrance of the house as he greets Nakama wordlessly.
It didn't take him long to notice her mood as well, so he wouldn't want to bother her too much if she has a lot in her mind.]