Yuko is drinking wine at the home of her friend from her school days, Megumi, to celebrate their long-awaited reunion. Just then, Megumi's husband, Masanori, comes home from work. With her elegant and cute features, her cleavage that makes you want to bury your face in it, her slim waist and the curves of her hips... Masanori falls in love at first sight with Yuko, whose beauty is incomparable to that of his own wife. He tries to use reason to somehow control his sexual urges, but he witnesses a certain scene...