The door swung open moments later, a faint laugh attached to the beginning of Kiriko's greeting.
"Hey, I was wondering when you'd--"
At the sight of Kou, she stopped dead, her easy smile melting instantaneously away. For a moment, before she had identified her guest, she had looked uncharacteristically happy (at least to everyone who wasn't Reizo and Kozue). The hairpin turn back to her more serious public face made her annoyance that much more visible.