One thing I do love about the Black Butler versions of Alex and Arthur compared to the Hetalia versions, is Hetalia Alex freaking adores her dad to pieces and couldn't imagine being disrespectful towards him, meanwhile, the Black Butler RP, half of their intersection is basically just this
"STOP STEALING MY CUSTOMERS OLD BASTARD"
"IM NOT CALM THE FUCK DOWN *helps another customer*"
"DAD"
"WHAT??"