Been playing since 0.2 and I'm digging the gameplay loops! You have cash pretty well-balanced once you get a raise since there are so many different things to spend it on. I will say though that if you keep adding characters that there really won't be enough income for you to be able to stay on top of keeping them all fed. Especially with your boss being a pit you throw your money into at the end of every day. I assume it'll get even worse with persuasion options being added for the two characters missing them. It means you'll be spending $20 at the beginning of every work day to taxi everyone to work and that will get bad fast. Maybe adding options for passive income is the way to go? Investing books you can buy from the store or something?
The other thing that needs balancing is relationship levels. Mira, for example. I maxed her relationship level before even getting her addiction level to 2. Relationship gifts also don't seem to be worth the payoff since a cup of coffee with someone only costs $3 and raises affection by a base of 10 but a necklace costs $50 and only raises by a base of 50. Meaning that coffee and a simple compliment or goodbye is far more worth it than buying anything for the girls to raise relationship levels.
Great work otherwise though! Very curious to see where this goes.