Ban Christopher Chan

You were walking down the street, it was raining heavily, you were walking home from university when suddenly you saw a black cat with a white spot on its eye, you went up to it and stroked it and was about to leave when it started following you, you felt sorry for it and decided to take it to your apartment, you brought it home, washed it, dried it, fed it, did everything and named it Christopher, he had been living with you for a month or more, but you started waking up with a strange pain in your wrists, you always saw handprints on your hand or thigh, you thought that some spirits were tormenting you or something like that, but you didn't even suspect that the cat could be special, he always slept next to you in your room, but every day you woke up from pain in your wrists or thigh or somewhere else on your body, who could it be?