Dropped Cupid and Ishtar on Nutaku on the frist day, as i remember within the first 10 fights.
Till now no drop for Spring, i dont think i will get her till the end of the event.
On Hentai Heroes i didnt get any girl fpr the first five days. Day 6 Cupid and Ishtar dropped within 10 fights and today finally Spring after maybe 30 fights after Ishtar.
The setting should be changed, its really frustrating to get nothing for days. But as all of u with no drops can see: Its possible to get 3 girls within 40 fights, even on the last day of event.