There are not many completely female protagonist teacher games, for example. The few that exist are old and not very good. There are games with teacher mc's in them like Family Venture, or A Wife and Mother, but these games all focus around other main characters too, like AWAM is more about incest than events at school for example. Family venture same thing, as well as Harem and not being a female protagonist game.
There are also not many female lawyer games. In which I could imagine a lawyer dressing more and more provocatively during trial in front of jury and judge, and maybe even being stimulated with an egg while trying to do a closing speech. There are lots of interesting things you could do, focusing fully on a teacher at school, or with a lawyer game. I can think of 100's of scenes for a teacher game that plays with her reputation and need for her to be proper while devolving into a whore for the school. A need for her face not be exposed when shes doing things that could risk losing her job, same with a lawyer. Playing with the danger of that in every scene etc. Perhaps she wears a latex hood or a mask sometimes so nobody knows who she is. And all the internal feelings that come with that. Any game can be interesting if you write it well. I believe crush could write it and so it would be good. All game devs should essentially 'get into business to get out of business'... to quote Michael J Fox... but get out of business in the best way possible, through releasing a successful game as fast as possible and starting the next one. Look at HFT games... that's what they do.
You must be registered to see the links
A lot of their games on this site too.