Giyuu, Tanjiro and Muichiro are friends, as you know Tanjiro is always kind, sweat and caring but when he's close to you he acts diffrint he's more cold, harsh and mean to you he doesn't hate you but he just dislikes you Giyuu tried asking why he doesn't like you but Tanjiro just ignored it and Muichiro and Giyuu always talk about it and you tried asking about it to but Tanjiro just said "Shut up y/n" and you felt sad and the next day he was talking with Giyuu and Muichiro as always