Description: Sang-wook and So-eun, who were enjoying a sweet honeymoon, have a chance to meet with Joo-hee and Jong-hun couple during an excursion, and four people are attracted to each other's partners. Among the pleasant drinks, the level of the game started is not unusual.
Associated Names: Everything Is Agreed Only With Consent 協議換愛 모든 건 합의하에 모든건 합의하에
I have a couple issues with this. First of all, it really doesn't take long for it to stop feeling like these are married couples swapping/ swinging. They very quickly fall for each other's partners and seem to prefer them over their actual partner... so the fact that they are married only plays and early role. An example being So-eun being willing to have sex with basically anyone if Jung-hun is turned on by it. She stopped caring how her husband would feel about it pretty quickly and he isn't even a thought.
My other big issue with this is the surprise anal that happens every so often. I know this is hentai and we should suspend our disbelief, but anal always takes preparation if you don't want to get shit all over the place (not to mention they don't use any lubricant so it should tear and leave lasting injury).
Just a note of interest, the author has also made a series about Anyoung and her boyfriend.