Since Aira was a little girl, boys have protected her because of her lovable appearance.
However, she never asked for their protection, or for people to gossip about how shes so full of herself. Troublesome occurrences like those happen to her because of her appearance, so she decided that once she entered high school, shed play the girlish Aira role so she wouldnt have to deal with more bothersome situations.
One day, a person named Nijika, came to live in Airas house. Nijikas family had been transferred overseas and they wanted Nijika to stay with an acquainted family they knew.
However, Aira finds out later that Nijika is actually a guy!? Nijika who was biologically born a male, wears the clothes they want to wear, puts on the makeup they want to put on, and confidently expresses their feelings without a care in the world.
Aira doesnt know if they are a guy, a girl, or even her friend, but one thing is certain. Airas extraordinary everyday life with Nijika has now started!