A parent is so in love with a beautiful nursery teacher that he secretly takes pictures of her every day when he drops off and picks up his son. One day, the teacher finds out about his misdeeds and, as if she has a hold on his weakness, forces him into having an affair! Right next to his son, she plays with his penis and stops him from reaching orgasm... The Kokoro hearted teacher at the nursery turns into a slightly sadistic little devil who takes the lead when it comes to sex!