Can someone please give me the baisics story points of this VN?

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From what i understand, The Protag lives in a simple apartment and enjoys the open baths and the widow who runs it.
The widow runs into Money trouble and considers closing the baths down, but Protag convinces her to set up massage services.

My questions are (since my VN reader turned shitty) is

Did they set up a simple/slightly erotic massage parlor, or was it a prostitution house? because it seemed to me like the girls only did and only wanted echi stuff with the protag and no one else, but according to vndb the games genres include prostitution?

Did the heroines just have sex with protag or did the job require them to please other folks (did seem like that sort of VN)

Where the two girls forced to leave the parlor because their parents forced them to because of the nature of the job, or was it because they didn't want them to work yet?

Did the new services work overall? (i guess yes)

Is Harem end true end?