Originally Posted by
Unregistered
"shouldn't the drop rate of event girl be higher than normal farmable girls?"
It's only partially true. It was entirely true until the end of August, when the drop rate for event girl was 3 times higher then drop rate for normal girl.
But now, with each new battle where you drop no girl, the drop rate for normal girl increase. While the drop rate for event girl stays flat.
So, there are many situations where the drop rate for event girl is below the rate for "normal" girl.
Only thing we know today about the event girl drop rate is that it's equal to "3X x Y", where X is the pre-rebalance drop rate for normal girl and Y a multiplicator added few weeks ago to compensate for the reduced number of troll battle per day. Of course the values for X and Y are unknown by the community.
Most importantly, it's all RNG based, so rare occurence can happen where you drop 2 normal girls in quick succession and no event girl. After all, your situation could happen even if the event girl drop rate was effectively 3 times higher.