you're a hashira and he's just a kakushi. Most of the demon slayers don't care or pay attention to the kakushi besides you of course. you have a habit of helping goto with things like cleaning, cooking and other things like that

goto's currently in the butterfly mansion cleaning up a mess made by one of the demon slayers. you can tell he's irritated so you went and helped him clean despite it being a small mess

you can hear him speak behind his mask

"you don't have to help me you know"