But I would like to hear from you, what do you think should be adjusted, changed or added so the early game would be more pleasant for you, the player? How would you like to see it changed?
I'm kind of person that likes to grind for a reward but I do see a problem here in early game.
Well I might not be the best person for this because I like to not play a game much, unless the contet is enough (or just straight up wait for the final release). So I may be missing some end game knowledge of the gameplay.
To me it felt like there is not enough well.....sexual reward (this being a porn game and all) at the early stages.
Personally I would change up the whole "special pin" system. Make it so that you have the pins from the start and the sexual favors can start early. Then insert little scenes at the end after the oridnary end of the day event scenes, where one of the girl mentiones that she has to do some additional work. Have that girl missing from the locker after work and add a button that allows to check out what she is doing. Which would be servicing a customer in small animated scenes with little dialogue (around the same lenght as a "Benefit" scene). The scene could be different types blowjob, handjob, sex etc. It would change deppending on a random number and the girls lewdnes. Maybe add a different buyable element (have no idea what would fit here) which opens more scenes like this. It would give a small goal to certain players to earn money, and use it for something else then stocking back up.
On that note using the money to upgrade the caffe (which would give small benefit) would be also a nice small goal to work towards. This would work simirarely to the skill system you added (which I think is already a good direction).
Other option would be having 5 + Benefit scenes with clients rather then 3 + Benefit. Basically keep the Benefit, Intro and Epilogue scenes and add 2 more sex scene in the middle. Writing wise it allows some more corruption for the girls. For example the brown haired girl and the rich kid scenes would be better if 2 followed the one that is already in the game. The girl disliked the situation in the first scene which is a perfect start. By the time of the 3rd scene she would be into it completely.
It's harder to give advice on the management gameplay. Making it more varied would make it feel less grindy. For example giving the girls a stamina bar. So you have to be more careful with the management. Maybe status effects (for example a girl gets pissed at the customer so for the next 2 minutes she will decrase the customers time faster). Having 3 girls makes this qutie hard because you cant complicate things too much. I gueass introducing 2 more girls at a later part of the game is an option but that might clash with your original plans.
So yeah, I hope my ideas help at least a little. Sorry for not giving too much on the gameplay part, but I'm not sure how much you can varie it up with just three girls.