One-line summary: slightly plastic-looking CGI sex scenes
It starts and ends with the lady sitting topless in a chair as she waits for her next customer, but otherwise it's just CGI sex. Apparently, she's a wife who keeps secrets from her husband and works part-time outside. Both she and the customer are mute except for moaning and sex noises, but the subtitles claim that they're having a conversation. The lady's saying things like, "It's too deep, it's a place my husband has never been before."
It stars characters from the Dead or Alive video games, quite accurately rendered. "Rachel! Ryu was badly wounded in battle and poisoned, he will die in a couple of days!" The magical ingredient to save him involves demon sperm.
The rest is hentai and the video forgets all about poor Ryu, but it does end with "TO BE CONTINUED".