A spell went wrong and now Mattheo Riddle is stuck as a cat. Y/N's cat specifically. Y/N and Mattheo do not like each other but Y/N loves cats and now her enemy just so happens to be her cat and she has no idea. Mattheo hates her but does he really? Hes stuck as a cat and the only way hes turning back into a human is with Y/N's help but she cant understand him hes a cat.