This game could be one of the best if the author would flesh out what's there, before adding more new things.
In my opinion it needs more stuff to do outside of ghost hunting as at this point it doesn't really even need the city map because there is really nothing to do in the city itself. The main draw of this game should be just how the consequences of doing that really risky sort of job affects the average female ghost hunter's everyday life due to mounting corruption and the changes of her reactions to everyday things she encounters like the attempts of getting groped, the thoughts of even falling down to things like prostitution or just generally becoming a total slut due to not being able to deal with all the lust caused by said corruption. Lets not even mention the possibility of your female helpers getting fucked up/ corrupted along with you thus enabling you to see them slutting it up in various locations in town.
The corruption as a stat should have way more impact than it does now, at the very least it should make the minimum possible lust scale with corruption thus making it really difficult to actually do anything else with the ghosts outside of fucking (which would make you resort to just fucking the ghosts until they are satisfied). Basically slutting it up with the ghosts should be a valid mechanic after your character gets too fucked up to do anything else (too corrupted to even think of doing her job propperly).
I would also like to see a feature where there's a chance for ghosts to capture the player the same way they do with your helpers and you have to wait for some sort of rescue (either from your helpers or from a random concurrent ghost hunter which would of course come with some sort of price attached seeing how they are after all your competition).
Also i have noticed that sometimes even with all three of the evidences being correct the notebook just shows you the wrong sort of ghost and you fail no matter what ghost you choose when you report to the witch.
Outside of the above the game shows a lot of promise, but as i said it needs more content.