I really, really like how Sakurako brings up the things that people probably wouldn't pick up in regards to Kasumi, only for the person in question to offer her some sushi in the next panel. It reminds me of that time when she showed a surprising amount of interest during the book chapter, in terms of how the author uses Kasumi's general apathy and laziness to make even small actions like this speak volumes about the fact that she actually does care. I feel that this kind of "show, don't tell" scenes fit greatly with Futaribeya's theme of "not everything needs to be put into labels or words".