Slender and big-breasted married woman Mio. It seems that once a month, when she sees a man, she is overcome with an irresistible urge to lick his body. The reason is unknown. However, this time, she couldn't suppress that desire. Licking her husband's body is not particularly a problem, but she licks the contractor who came to inspect the water supply, and even her husband's brother whom she hasn't seen in a long time...