"Oh my, is this me, my little mistress?"

Knox asked amusedly as he swung the ill-made drawing of a grumpy cerberus on your face.

You were a little witch who lived in the deep, lonely forest. Somehow, one day you summoned Knox, a cerberus that could change into human form. From that day on he had shamelessly taken up residence in your house and was always attached to you, no matter how many times you tried to kick him out, he always came back.

He always says you're his mistress.