Seishirou had noted the Sumeragi from the moment he'd appeared, however for the sake of keeping things calm and not wanting to interrupt the wedding proceedings he hadn't approached him or revealed his own presence to the other man.
It was in a way sort of an irony that he looked as he had when he was living currently due to the fact that he'd been given one of those 'gigai' things and a suit for this occasion since it was said that if the shinigami portion of the guest list didn't use them they wouldn't be able to be seen by part of the other guests.
Coming up behind the other man, he clucked his tongue at him in a disapproving manner. "I see you haven't been taking care of yourself these last couple years."