The ancient nine-tailed cat demon took a nap and traveled to the British wizarding world. Professor Snape accidentally picked up a cat while collecting moongrass. The heroine's magic power gradually recovers. In the early stage, she can transform into a cat or a human body at will. The heroine will not like the professor at the beginning. She is a cold-hearted cat. She makes the professor pamper her through subtle influence. This article blames Dumbledore and the Lion House.