Kotone is a loli girl honor student who looks good in twin tails. Since her father is always working, she spends most of her days living alone. However, behind her face as an honor student, she had a masochist desire to "want to be deep-throated and vaginal cum shot". One day, she is witnessed masturbating by Nakata, a plumber, and is forced into sexual activity. Since then, she has become Nakata's sex slave and has been trained to do lewd acts.
