Kouchisei had been indisposed with the faculty, to put it truthfully. In the beginning he'd never thought he'd need to talk to somebody, but it was helping and he wanted to continue talking - in private - till he felt he didn't need their help no more. He felt better than he did a month or two ago. Perhaps it was because of... that business?
But when talking to other people, it didn't leave him time for other matters. He opened the door and caught the end of the conversation.
"Girls go for the wrong type. I don't understand, myself. But it's her business." His tone was more forceful now. "If she is in danger should't we be doing something about it?"
It was a more productive way of announcing himself than saying 'hello'.