Exclusive to Madonna, a re-enactment of the legendary humiliation training comic 'The Stepfather ~ Yumi's Afternoon ~' for Nao Shinaguji's 2nd anniversary as an exclusive model! Yumi, a pure and beautiful newlywed who has been living happily for three months since her marriage. However, her stepfather, Nebuzo, had an abnormal fixation on her. Seizing the opportunity after a certain incident, Nebuzo mercilessly torments her, taking advantage of her weakness. This becomes the trigger for him to repeatedly and relentlessly develop her body, corrupting it into a sensitive one...
