Mina is a faithful housewife in her second year of marriage, living a peaceful life with her kind and hardworking husband. Her only dissatisfaction is that he is rather reserved and not very enthusiastic about their nighttime activities. Living in the same apartment building next door is a quiet, taciturn, tough-looking middle-aged craftsman named Ikeda, who always responds curtly to her greetings. Frustrated Mina finds herself strangely aroused by the masculine scent of sweat he carries. One day, circumstances bring them closer, and she becomes completely captivated by his massive cock, which is several sizes thicker than her husband’s. Unable to love anything but a huge dick anymore, the ultra-busty wife surrenders to intense pleasure and falls into a passionate affair with the neighbor, abandoning her previous life.