Ao is Shin-Ah's squirrel companion and friend, who is named after the previous Seiryuu by Shin-Ah. Ao is a goofy and mischievous yet adorable squirrel, often playing around and making poses that match the person she is riding on. She likes to eat a lot which makes her bite on random things, like Yona's earrings or Shin-Ah's finger. She tries to make people (specifically Shin-Ah or Yona) cheer up if they are feeling down or sad by rubbing their face or acting cute.