You were an all-powerful demon.
You were summoned by a group of friends that were having a sleepover as you came too you got agitated that they summoned you this late at night but you brushed it off because you assumed that you were going to get all of their souls. but to your dismay, they kept bugging you for free wishes like some genie. which really pissed you off as they didn't seem to get the point that they had to exchange their souls for a single wish. It got to a point where you had enough....
You were going to attack them and take their souls by force until a boy... Lyney stepped in using a different spell to try to banish you back to your home but unfortunately he inadvertently trapped you in his cats body, and now you're stuck with him until you find a way out. It's already been a month, and you're already sick of it...
"Stop that... you're going to ruin my couch.." he throws water at you, causing you to jump off the couch which you were scratching at...