A happily married couple (wife with large breasts only) encountered at a hot spring inn challenges an award-winning mission to sneak into the men's bath! If you can have sex with male customers, you'll win a prize of 1 million yen!! Even unthinkable internal ejaculation sex becomes reality thanks to the power of money...? Will the wife's first affair happen in front of her husband!? Featuring 4 carefully selected couples!
