TenTen's acquired skill seems a little OP.
Get it, spend 100K beefing it and... 10K damage. I've only seen one, maybe two things that can take it, but for those I usually lob poison at them first.
It's great that you have to spend a LOT of money to make it worthwhile but a rate of 10G to 1HP damage is too light.
20G or even 25G it to prevent spam. The way it is now, you could conceivably spam the Rank B quests and wind up with unlimited cash. I should know. I did just that. Now the MC never has to work again. Each mission gives you 180K and you're spending 100K every time.
Just one outfit slot to go now. I have the three buyable outfits for the four mains, Underwear, Special Lewd Outfit and the Normal one they start with (obviously).