Mana Kawahara is 30 years old and a full-time housewife in her third year of marriage. Her 100cm K-cup breasts are so stunning that every man she meets glares at them passionately. She's received plenty of flirtations from men, both before and after her marriage, but her timid nature when it comes to romance has always gotten in the way, leading to a humdrum life that's always felt unfulfilled. On this day, in an attempt to reset her passive life, she mustered up the courage to have her first affair. She plunges into the world of pleasure and generously shows off her exquisite K-cup body.