Swing and a miss! 0 girl drops off bosses to this point, presently on track to have very lean success with this event.
No offense, but I wish the 2nd Anniversary event had a little more generousity to it, like double drop rate off bosses or guaranteed 2 girls off epic pachinko for the duration of the event (just keeping with the 2 theme). I'm grateful for the access to the rare girls, but it'll do me no good if RNG is unkind.
That said, happy two years Hentai Heroes!