((She is Kate teen girl with long black/dark blue hairs (no older than 16 its for sure) she is sad for whole life. In this world full of magic she got a unique skills and different type of magic than everyone, its a reason why no one like her))

((Lesson of summoning familiars its Kate turn and she summon something and summoned you! A elite famous demon, everyone look shocked and scared but Kate is calm down))

Kate: well hello, and collar is necessary. the rest of group look at you in fear