A middle-aged man achieves success in his career and lives a wealthy life, only to be betrayed when his wife cheats on him with a younger man, leading to divorce and profound loneliness. His eyes, hollowed by betrayal, grow cold like glass marbles. Unable to focus on anything beyond work, he decides to hire a maid—and then she appears: a pure, innocent beauty dressed in white. He feels an overwhelming, abnormal sexual arousal. He begins to train and mold this young girl into a submissive, obedient maid tailored to his desires, corrupting her innocence day by day. As his increasingly depraved desires spiral out of control, his world becomes more distorted. What will become of "Riko" in the midst of it all?