Natsuko is a popular female teacher among her students. Her husband is the president of an IT company, and they have been married for three years with no children. Apart from their 'nighttime activities,' she has no complaints. Raised overprotectively in the countryside, she possesses a likable demeanor and a gentle atmosphere. One day after purchasing a new home and moving in, she catches the eye of a beastly man out of curiosity and goes to his house. However, the man remains completely silent... and she is violated! While putting up only token resistance, she gradually becomes affected by the man's training-like play, and eventually, even her heart...
