Well, hello, neighbor. Part of Kaji is irritated at having to use the public message board, because there are some things that just can't or shouldn't be communicated so publicly. And this is one of those things. He can appreciate the need to get more info, but calling attention to the fact that he's injured? Why not just slap a giant target on your back there, Cloud?

He is curious enough to go to Cloud's house, rather than just returning to his own. Kaji knows very little about medicine, but this is something different, something new, and so Kaji wants to know what's going on. He knocks on Cloud's door and waits patiently.