She had used his last name and ranking, it almost felt like a cold icy dagger across his heart for a moment and so distant, even from her bright and beautiful smile. Then he realized how absurd he was, he forgot the setting they were in, but he could not be blamed too much, he had spent months waiting for this day. But he couldn't expect her to have greeted him in a friendlier manner in this setting; after all, this was an professional interview. The reunion was later; or at least, that’s what he hoped. His eyes slowly shut for a moment as he contemplated his next words, keeping in mind that his new customs included maintaining a high standard of language in speech. It wasn’t any longer then a second though before he decided how he was to answer. "Though your thank-you is more than appreciated Ketsurui-Hime-Sama, it is unnecessary. I promised you that I'd be here, and so I am." His words were not condescending or cocky in any way, they were more like that of an old friend. His piercing blue eyes then drifted back open to catch her own gaze for a moment; he smiled softly with a kind and serene sort of expression.
Then with the calm moment passing and his words faded away from the conversation while Aoiko went on to explain her position. He nodded once more agreeing with Aoiko, as he believed too; that Midori's time with the Star Army was too short. His calm expressionless complexion returned as he began speaking again to answer Sora after Aoiko had finished her explanation. "Yes, Midori-Dono was my Sensei, in many aspects, much beyond combat and being a samurai." He answered the next part of her question simply, he could go on about how grateful he was to Midori, but thought it'd be best to save the stories for later.
The curiosity obviously played on Miyoko’s face as she wondered about him, and if it was there, he would already paying attention to it. Though Sumaru was not looking at her with his eyes, he could literally see all over the room through his skin and was keenly trained to always be aware of his surroundings. So he curiously paid some attention to her, but still most of his thoughts and attention were on the meeting at hand, his expressionless body language gave off no hints of his unseen gaze another useful skill he had learned from his mentor.