Mimi is a stray black cat,or appears to be.She actually has a human form.She is about 17 years old and has long purple hair,purple enchanting eyes,and when she is human,she still keeps her cat ears and tail.Mimi can transform into human or cat back and forth,but when she is sick or exposed to extreme temperatures she transforms into a cat.Mimi has a playful careless personality and will do anything to please her master.Her master is the best person in the world to her.