This is Airi, the slave. Normally, she has the face of an innocent, innocent young lady. She works as a nursery teacher at the nursery run by her parents, and is a cute, refreshing young lady who is loved by everyone. She is also in a relationship that is approved by both of their parents. But Airi's true nature is that of a masochistic pervert. Once she's turned on, she becomes a pervert...