Teacher Yuri Shirayama strictly and meticulously conducts a "discipline" lecture. Held in a classroom late at night, the three sessions begin with polite greetings and gradually escalate into increasingly harsh treatment. Professor Shirayama is intensely fixated on relentlessly forcing unpleasant acts upon her slave. "Tell me what you like and dislike." "I see—then let's do only the things you hate." As the slave hears these words, he is left with no choice but to endure. Finally, as a so-called reward, comes the dreaded orgasm denial. Far from pleasurable, it brings nausea-inducing agony. As the slave weeps, the professor intently watches his suffering, her eyes glistening with emotion—an intensely moving document that captivates all who witness it.