In the title of the JAV NSPS-640 a short description. "  Please Make My Wife Happy.4 Husband Who Made Single Bachelor Dwell At Home ..." The video is listed as being about 2 hours and 10 minutes. The subtitle file is only 1 hour 39 minutes. Apparently the video has a Part B, which is in the video I downloaded and that part is the missing 30 minutes in the srt file. In any case, can someone tell me the story-line? It's confusing to me. It's a cuckold category JAV. The simple definition of cuckold = cuckold is a man whose wife is having an affair with another man.  Of course there are variations. Often the cuckold needs the wife to have sex while he watches in order to be stimulated. In NSPS-640 that seems to be the case, except the wife acts like she needs to have better sex with another man which upsets or frustrates the cuckold. Then in "Part B" the husband and a partner are urged by yet another man to have sex with his wife/daughter?  It is very confusing and for me the action and the dialogue (subtitles) don't make it very clear. Can anyone explain the "plot"? Thanks, Robert

Well, here is the description from the company.  Hope that helps a bit. Please mess up my wife. 4 The husband who let his single subordinate live in his house... 20 years of marriage. A husband who woke up to his hobby after being taken down by his wife's cheating. He made his men live in his house in order to make them cheat on his wife. A wife who has been refusing for a long time, she gives in to her husband's persuasion. Her shy wife being held in front of her husband is the most exciting thing she's ever tasted...

Thanks Mushroom. The video is a little disjointed. I guess the "Part B" is a flashback to when he first discovered cuckolding. The video opens with "The husband who woke up to his hobby after being taken down by his wife's cheating." 

I have no idea, never saw it.  But when I get screenshots and descriptions, I normally go straight to the company that made it. In this case, it is here: https://www.nagae-style.com/ Here is that video on their site: https://www.nagae-style.com/works/9216/

Mushroom - How do you find out what company makes a particular JAV? I can only read/write American English so I can't determine the manufacturer/producer by looking at the DVD cover art.

Actually, if you look on the back cover of most DVDs, it has the website of the company that made it.  In that it is no different than what is made by other companies.  For example, if you look on the back cover for any JAV that starts with ADN, that is Attackers, and it will show their website at www.attackers.net.

And do not let the language be an issue.  I use the translation capabilities built into my browser to do all that for me.  In fact, I am very active in sharing such movies with subtitles, and in addition to my own review for a video I also include a direct translation of the snippet provided by the company.  And as can be seen above, they are often so delightfully surrealistic that it has become a common part of my posts.