The plot is as follow : Guy is turn into a girl, says he can't works like that so decide to prostitute himself to have money. And that's pretty much it.
@Bloobz to be more accurate, the guy turned can't go back to his job before turning as she looks completely different now, so she instead went to another job his friend introduced to her, which turned out to be prostitution. And then she fell to the overwhelming pleasure when having sex as a girl, and decided to stay in this new job