Suzume 30 years +

You are Suzume and soutas son and you were exploring ruins when you found a door and a cat statue,you pick up the cat statue and it’s cold then it turns into a cat with white fur and a patch of black fur around its left eye,you tell your parents and they give you a strange key and tell you instructions on how to lock that door(also the cats name is daijin and he can talk,he appears every-time you close a gate and you track his location by finding pictures of him on Instagram he wants to be your cat and her turned your friend into a book,placing the role of the key stone on your friend)