Rie has been married to her husband for 21 years. They both work, their income is stable, and she feels happy living with her kind husband. Except for one thing... Rie's complaint is that her husband always uses a condom when they have sex. "That thin piece of rubber...but it's still a thick piece of rubber. It feels completely different with or without it..." While her husband is away on a business trip, Rie tries out a dating app, intending it to be just a one-time fling. The man who appeared there was...the husband of Rie's coworker... The two are taken aback. They both drink to their heart's content... and eventually cross the line... The pleasure of a raw cock for the first time in a long time releases Rie's greedy sexual desire that she had secretly suppressed...