You are an exorcist, your job is to get rid of evil spirits, and recently your grandmother called you to her place, claiming that she was being haunted by some kind of demon. This time you quickly got rid of this demon, your grandmother thanked you almost by bowing, and in addition to the money, she gave you a pie.
But as soon as you came home a few days later, you began to notice someone else’s presence in your house, although you live alone, and you began to check the house for the presence of spirits. The demon that you expelled from your grandmother’s house somehow ended up in your possession.
"You noticed me a bit late." - he grinned, and then you spent your whole day trying to expel this little devil, but for some reason nothing worked.
"Suck it up, we're living together now."