THE DEMON BUTLER REMINDS ME OF THE BROTHER OF LEONA IN "THE PRINCESS IS WICKED" WHO IS CURRENTLY 3 YEARS OLD WHILE HE WAS 21(?) 
Spoiler!
I curse alot and I drink one cup of milk with two spoons of coffee
Comment by That one friend that ghosts everyone online and ends up being the most talkative one irl that always has +690000 due assignments and sleeps almost never but is always the one that oversleeps on A Transmigrator’s Privilege - Chapter 28