I'm still not seeing how to win an absolute minimum playthrough. Here's my problem-solution list:
- You need to get out of the slums, so you need a D+ slave with a specialization to sell to a resident.
- You need a massive amount of time to do this, so you need to be cash-positive.
- You can't train slaves quickly and profitably enough to pay off a debt.
- So you buy a $20 slave on the day of arena fights to have her win the first fight and then sell her to the butcher for an extra $20. So you could theoretically generate an infinite amount of money by doing this, but it's extremely slow.
- You could do guild contracts, but they won't raise your skills unless you train the slaves yourself and you can't.
- Slaves refusing to go to school costs them no energy, and the same goes for when they refuse to take your character's lessons (which they always will at first).
- You can drain their energy by making them spar in the arena.
- You have no way to get them to accept any lessons other than tutors.
- Tutors start to cost $10 per lesson as the skill gets closer to B+, so the costs become extremely high for your limited budget.
- You can't do anything other than verbal punishments since the slave will rebel and beat you.
- You can't beat the slaves since training combat higher than D- takes a huge investment and, even if you did that, you'd just be making your slave depressed and wounded.
- You inevitably wind up with a slave that has common skills but no obedience.
- Your only way of giving your slave a task to succeed in (and thereby earn reward) is to make the slave be tutored.
So as far as I can tell, the best method would be to grind out a profit of ~$20 per decade until you have so much of a stockpile that you can afford the massive tutor investments necessary to fund the training of at least 1 D+ slave. I don't know if you need more since I've never been in this situation before. I hope that someone can point out something that solves even one of these bullet points.
*Just for context for everyone else. We're talking zero to hero here. 200 sparks, no faction favor, no skills.*
I've been trying on and off in the past weeks and I have to agree with most of your points. Currently there's just too many things bottlenecking you, and in conjunction they just make it nearly impossible for you to get out of the slums.
You can actually find slaves that you can teach yourself, but that opens its own can of worms. High endurance without a backbone will almost always be willing to learn dancing, but no matter what you do their diligence is almost always -1. You can punish them all you want, even beat them 3 times in a row after they rebel, but they will still not take you seriously.
While we're on the topic of rebeling, it actually makes your life in the slums way worse than ever before. Even if you beat them, you barely gain anything from it, but it still eats up your stamina, which makes you either lose health if you did go to the hip to eat, or outright kills you if you didn't. This basically circles back to your health being limited to D- in the slums with bad food. From what I saw so far it's just not worth it to go to the hip to eat, you don't get enough of a bonus from C strength to make it worth the spark/stamina investment, since they won't do what you want anyway.
Back to the slave. So far, I only managed to rarely force out +1-+2s from normal lessons (not counting when a girl has a favorite activity), which only lasted a day or two, and because they simply aren't willing to try, their skills barely develop. In turn you can't grind your own skills either. I don't know the code, but it either takes way too much exp to get to D- in any of your skills or -1 diligence doesn't even give you skill exp. Even if mood is a bigger factor than before you can't keep them happy in the slums if you start with 200 sparks, especially if you try to punish them. So their mood almost always works against you.
Onto the arena. If you don't opt for buying a new slave for every arena run and you use your own spineless slaves, you might get that win money, but they also gain a level of pride/nature/temperament, which basically nulls any progress you had up to then. Most of my slaves simply refused anything they were willing to do before (at a -1 diligence of course) after they gained that level in pride.
All of this takes a very long time with barely any improvement, while you also need to stay afloat, which is made even harder by the clothing cost increase.
I really don't agree with the men's clothes cost increase. You need at least 2 of them to start out at the bare minimum, which since you can't really buy more locks you out of even trying to train half the slave's skills, and even with this disadvantage you pay 80 spark for them on top of the 40-50 you already spent on your slave. Loans are a no go since you can't repay them, and arena actively ruins your slaves willingness to cooperate.
Spoiling/Awerness is another issue. I get it that the slaver has no talking skills, but still nobody believing you anything you say is a bit much, and once they get a point of spoil, it takes too long to reduce it. While they have that point they refuse everything so it just becomes worse if you can't deal with it fast.
My best option so far was to buy a strong slave with high pride, put her in the freezer and have her fight in the arena, while I fiddle away with my spineless slave on other days. It's way too grindy and contrived.
TLDR:
Someone might be willing to savescum it out, but currently my stance is this, zero to hero without heavy savescumming and exploiting is simply not possible.