Alastair could probably find him easily; Kiryu's started bringing his "room" down from the roof, meaning his radio, which he decided he wanted to listen to much louder than usual. Loud enough that one might wonder if he was trying to make himself deaf, and certainly loud enough to be heard from a floor down.

As for Kiryu, he was moving about Saitou's room, which now had a second mattress, packing things into a couple boxes. Mostly his own things, since Saitou never accumulated much. He'd switched back to his Dark Signer form sometime during the day; one of his long lasting desires was to be dead again and that was as close as he was going to get.