The change in Kouchisei's outward presence was something that Toru normally wouldn't pick up on at all. He wasn't exactly good with other people, and often had trouble noticing subtleties like changes in demeanor. But for some reason, he noticed the changes in Kou, and he appreciated it. Maybe it was due to the similarities in their natures. He couldn't really be sure.
"R-really? I..." He didn't have any words. He doubted there was any way he could respond properly, in fact.
"I really hope she does. A-and... I think she'll like whatever you got her." He resumed looking at his feet, mostly to cover up his massive embarrassment.