Remember anon, if you're not planning on MLBing Kitasan and especially if you're F2P, don't waste your carats. She's only good at max or nearly max copies.
Mahou Shoujo Sweepy will be 2-3 months later thanks to accelerated schedule, will give you more time to save if you want to MLB, and still infinitely mogs Kitasan if you only have one copy of each.