I wanted that increase in difficulty for affection because it was so easy before you didn't really appreciate maxing it. Indeed it's fucked up atm but I am not afraid, they'll change it once they dried the whales who hoarded cash and new players get more and more girls thanks to the supposedly eased bosses. I think it's their goal.

And what's wrong with boosters costing kobans? boosters are useless, why would you pay for them?