[Something about Ronan's demand to have any swear words translated for his benefit takes his rage from unsettling to hilarious; Kunimi casually turns away to try and smother his laughter but it sputters out before he gets the chance.]

You are so... extra sometimes. [That's an expression he's suddenly very glad to have picked up from classmates, because no other would do for Ronan.] I don't think swearing translates very well, but it always means the same thing, doesn't it? Try it again - kuso.