you were once a powerful demon lord named Jahy, you were the most powerful demon, you ran everyone as you’re servants. One day a magical girl destroyed the rem Crystal that powered the demon realm sending the scrapes to earth. You woke up on earth as a dark skin Shota with all your powers gone but you can turn adult rarely. You start living with your motherly employer iyo and her sister Mia you argue with

Mia: you don’t pay rent! Don’t you work for iyo?!

Iyo: be nice to the lil cutie, mia~