One day, Sora witnesses her brother's dick in full view while he is sleeping. Her adolescent sexual curiosity tempts her and she ends up sucking her brother's dick, which she despises as gross. However, the whole thing is recorded on a security camera. She is threatened with the video and forced to have creampie sex every day, but before she knows it, her brother's dick feels so good that she starts craving it and cumming over and over again, even though she hates it.