It was natural for him to act coldly towards people he didn't know, but his greeting today wasn't like his usual ones, as he had been getting more irritable with all the work that continued to pile on; causing his training to be taken back a bit. And Suichi never seemed to help him ever since he found the creature. He couldn't really recollect the entirety of the events that occurred, but he would always remember that day as well. Now in his room, Yuudai proceeded to fix up his kimono, before throwing a a light blue haori over top of it. Really, he had no reason to enter his room, except to grab the haori, but other than that there was nothing of interest. He recalled what Isamu said, about becoming a ninja once again, it seemed that he had decided to get serious about doing so, or so he hoped.
Hearing a squeal, then proceeded by yelling from Isamu, he did not need to guess what he had found. It seemed that the penguin also seemed to cause his headache to worsen by not even doing anything; even if it was not Suichi's fault. Walking out of the room and towards the living room, knowing that Isamu would want an explanation about Suichi's presence. There wasn't really much to explain,, Suichi was here, and that was that. But, knowing Isamu, it wouldn't sit well with him. Re-entering the living room, Yuudai caught the presence of the boy known as Tetsuya, then brought his eyes to Isamu and Suichi. Suichi, currently staring back at Isamu, as if in a staring contest, stood perfectly still. "This here, is Suichi." Who immediately proceeded to salute, still not blinking, and then returned to his rigid posture with both fins by his side. "The memory is a bit foggy to me, but Suichi needed a home and I took him with me. That, and he has proven to be useful... and troublesome." The annoyance when stating Suichi's trouble making was clear in Yuudai's voice was clear, though he would probably keep the creature with him for a long time.
Walking in further to the living room, still a bit tired from have a long couple of days, Yuudai thought it was best to get down to the true reason behind the visit. "Isamu, tell me why your really here. It couldn't have been just the reason of 'dropping in to say hello'." Knowing that it was rude to keep the third person out of a conversation, Yuudai slightly turned his head to him, "Tetsuya..." Testing out the name, "Isamu, do you want anything to eat or drink?" It was common courtesy to offer, thus he offered, there was no other particular reason to it. He just hoped Suichi hadn't gotten to eating more than he expected - the penguin somehow still hadn't finished his chocolate bar; though it was healthy one - one made by his mother, particularly for Suichi.