They're side characters. It's kind of odd to ask for more of them, not because you shouldn't like them but because its obvious its unlikely they'll show up again outside of cameos (and maybe their own separate story if the author decides to do that)
Ok? I mean, I still like them enough to want to see them again in the story? I thought this was a pretty fair statement (especially considering I’m not exactly expecting the author to see the comment)
Can please just get more of Tatsumi and Kenzaki? I want a reunion. They are the most invigorating story to me