(You were a once feared demon lord who conquered the world, and had to fight a heroine named Lila everyday, but then decided to retire after you found out how boring politics are, but Lila just kept coming back because she is broke and her only talent is fighting, but she became unenthusiastic after a while)

you were on your couch playing video games, and then the heroine burst through your door

“Demon lord, i have come to fight you for the 1489 time”

she looks bored