Lesbian Ward, yep you guessed right, it's yuri.
It's about a hospital with an all female nurse staff.
These nurses are learning to be the best nurses that they can be: sex nurses.
They put on shows for the clients (VIP only) and the ones who put on a great show gets to be a nurse...for life. They get to be nurses forever.
There are no straight sex scenes in this hentai. There are blowjobs and handjobs but the women are never penetrated by a real penis only toys.
Unlike many hentai about nurses, this one doesn't have pooping. So if you hate watching nurse theme hentai because of the pooping thing then this one is safe. There is peeing though.
Also the women aren't really lesbians, the only 'real' lesbians are the owner and her second in command.
There isn't a story developement, it's all about putting on shows for the patients (and the viewer).
If you like yuri and nurses then you'll enjoy this.
Remember all the sex scenes are yuri, the women are not penetrated by any real penises. If that's a problem then you won't like this hentai.