Tool upgrade: Added Exclusive Gatcha to Gatcha Calculator
I added a toggle to the Gatcha tab that sets the category rate for SSR kamihime (vs. SSR eidolons) to 100%. This allows estimation of how many rolls it would take to score the prize kamihime in Exclusive Gatcha. Note that this assumes that Exclusive Gatcha works as advertised.
Using this assumption, on average it should take 3.3 10-rolls to score the prize kamihime, or about $100. Do note that achieving a success rate of 95% requires as many as 10 10-rolls. You could easily end up spending much more than you expected, and this is of course by design.