He frowned slightly, brow furrowing.
"Your sister?" he asked softly.
He didn't realize Kochou had any family. Of course, he knew there was a lot about Chou that he didn't really know. He always figured that she would tell him things that were important, and trusted her to do right by him. Now, it seemed, something had changed, and something, or someone, from her past was reappearing.
"Is she a threat?"