Hmm.

I think you're mistaken. 2200 is the number of keys you have to use to get a full set of ninja fragments. And that's 2200 coupons in total.

i was planning on buying her, but i don't have 2200 cpns yet...

if my calculations are correct, i'll get 120 frags of kurenai

first i'll get kurenai then rinne sasuke, after that i think i'll go for edo itachi

Thanks for the help!

Isn't 2200 keys 22,000 coupons? Since a key is 10 itself. though i think its around 20,600 for all the keys after free keys.