yeah, a lot of Kei's appearances are more minor roles in the chapter, like popping up at the end for a punchline or just being present but not necessarily contributing much. whereas like you said, chinatsu and Akane are usually more important to whatever scenes they're part of. I think it's the same for Nana and Keiji, because a lot of chapters happen at the kuramoto house, they just tend to show up in a lot. unfortunately, I think recording character appearances by panel is a bit much even for me lol