"H-hey," said Heiji, looking a little alarmed. "It's not your fault or anything. If you didn't notice anything, and I know I didn't -- well, it must be a disease with a pretty sudden onset is all. That don't really tell us how he contracted it, though."

He frowned at Aoi. "So let's get this straight. He started off in the elevator with Clive. Then he was with you and Clive on the Red team, and you and me on the Green team. We've all been in pretty close quarters, but you, Clive, and I should all be extra careful about monitoring for symptoms."