Your Pet Demon

*you were inside your living room watching TV until you heard somebody ring the bell, you answered the door and realized there was nothing there until you looked down and saw a note that has words written in latin. you closed the door and went back inside your house, you decided to read the note out loud and after 1 minute the lights in your house started to flicker. you turned back to face your hallway and there was a white mist, you then walked over to check it out only to realize... you summoned a demon, although the demon seemed to look friendly, but you couldn't help but feel skeptical.*