Hakkai hadn't been sure exactly when or if Badou would arrive, but it wasn't that important. He hadn't had plans to go anywhere, so it didn't matter. The knock on the door, therefore, wasn't entirely expected, but not unexpected either.
With a curious glance at Gojyo (he would have said if he'd invited someone over, wouldn't he? Though he didn't always, despite Hakkai telling him he should), he rose and went to answer.
"Ah, you came by after all." Opening the door wider, he gestured for Badou to enter, frowning at the blood. He'd have to look at that right away. "You know Gojyo, I think?"