Does anyone know the exact numbers/algorithm for computing the girl drop rate from boss fight wins? Kinkoid posted the below in a patch note earlier this year, and for a few weeks after, I was getting girls and a decent rate, but of the last few months, the drops, especially for event girls, seems to have, well, dropped and back to what is was. I know the base drop rate hasn't changed, but what is this increase that should happen each time we win a boss fight that doesn't drop a girl?
The counter regarding the drop of girls will move from an overall system to a counter for each boss. The previous system had unsatisfactory result. After the update, each boss will count the number of successful fight without a girl as a reward and increase slightly the chance for the next battle