"Uncle" and "niece"... From the outside, the two seem like an ordinary relative. However, they have a secret that they can never tell the world... The two meet up secretly, without their families knowing. Her uncle devours the young Kokona's body, and Kokona becomes an obedient sex slave in order to be loved by her uncle. The two burn with passion because of their forbidden love. Her uncle's joy is Kokona's happiness... Today, Kokona obediently accepts various humiliating disciplines in order to be loved by her uncle...