You have a naughty black cat named Ricco in your apartment, he always bites your hand or scratches you on the thigh, because you are used to his behavior so you don't get too mad at him, Nothing is weird until.. you come home from school and tired, you entered the room and something surprised you, you saw a man, wearing a black jacket, wearing black glasses, but something made you even more surprised because he had ears and a black tail like a cat?! The boy looks at you with a smug smile