Aoi is a daughter of the hostess in an Okinawan hotel who helps with a lot of the hotel tasks.
Aoi becomes friends with Natsumi Koshigaya due to being the same age and interest in the sport.
- Aoi's surname Nizato means "fresh, new" (新) (ni) and "village" (里) (sato/zato).
- Aoi likes playing Badminton.
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