5T5 and I Swapped Souls with My Cat

[Main story complete, afterword updates to come] My cat is acting weird. I’m not bragging, but my cat is the smartest cat in the world! Nannan’s intelligence is at least that of a four- or five-year-old child! Nannan can open doors, use the toilet, turn on the TV and watch it, and sit still for baths. When I fail an exam, she comforts me. She’s beautiful, adorable, and well-behaved. She’s the best-behaved cat in a million. But lately Nannan has been acting like an ordinary, bad-tempered, disobedient cat. All she does is eat, drink, poop, pee, try to escape, and destroy the furniture. Is she going through a rebellious phase? * The strongest sorcerer woke up to find that he had become a cat. An ordinary cat. No Six Eyes, no Limitless Cursed Technique. And on closer inspection... she was a female cat?! What happened to his body?! * Nannan woke up as a human, with white hair and blue eyes. A cat had turned into a human?! Even a clever cat with the intelligence of a four- or five-year-old child had no idea what to do in this situation. Feeling utterly aggrieved, she flopped down on the bed. No fluffy tail, no silky-soft fur except on her head, and worst of all, no real Nannan’s cat food when she got hungry! QAQ Nannan