Ususally, you should get enough money through simple gameplay (you have a house you rent out as a steady flow of income, work is not only for money but also related to improving relationships with the girls) and you do not have that many expenses bar some side character stuff. The larger issue for you will probably be that you will have to repeat other stuff so you can go after the girls.
No Grind for money is needed. You can earn it just by playing the game. Besides money is not much significant except for some outfits and 'services' from a fortune teller
Literally, if you show up to one tutoring session a week, you will cover your rent. So if you go to work occasionally and tutor every so often you have no money issues at all. And you will want to do those things to jack Theodora's and the young girl's stats.
Girlfriend Route for all LIs
It's literally on the first page man, if you're looking for the latest it's on patreon, free too
Yes, they are. And this game isn't perfect in that regard, I will agree. However, if you're already bothered here, I'd argue you can skip 90% of the games on offer on this site, there are worse offenders. And I mean way, waaaaaaaay worse.
The second post above yours is literally an Android port. If you don't trust that one, the dev's Patreon page has a link to the public release that is accessible by anybody.
