Eh can't hurt.
Tetsuma chats with the seller a bit (they're a blacksmith, too, apparently, so Tetsuma also gets a new whetstone for his knives), gets a pretty necklace that looks like stars caught in a mesh for Dayo and then hesitates over something for himself. He settles on hairsticks, eventually, fancy ones in dark wood with a gold-and-glowing-blue bead on the end. He then goes on his run, swinging back to pick up the gift (wrapped very nicely by the proprietor) and his own things on his way back.
He'll loiter around the room if Dayo's still asleep when he returns.