News link: 3rd Kinkversary HH
26 drops in Epic Pachinko
27 in Event Pachinko
11 from Boss fights (same as previous events' boss fights)
1 in Arena (Norou)
@Spy You are not alone.
My results: 10 times 10x EpicPachinko: 3 event girls and 7 permanent girls.
I don't complain, I had to get them sooner or later. Well, I have reserved some kobans for later events ...