Mpl90 said:
I don't have the numbers now (Doki Doki something), but it did much much lower.
But it was another genre...more hentaish.
Chris could help us...
Doki series by SNK - LTD
[DS] Doki Doki Majo Shinpan! (2007) - 39,012
[DS] Doki Doki Majo Shinpan! 2 (2008) - 29,298
[DS] Doki Majo Plus (2009) - 13,978
But Doki Doki wasn't a fighting game, more a visual novel with fantasy elements.
A more reasonable comparison would be with Ikki Tousen, a fighting game from the same creator of Kagura, from its same publisher, Marvelous and with a lot of boobs too:
[PSP] Ikki Tousen: Eloquent Fist (2008) - 13,978
[PSP] Ikki Tousen: Xross Impact (2010) - 29,268
...destroyed.