I figured this after doing really well on one of Asuka's story stages (I defeated one of the girls before she could change her outfit/regen her health) and still got a D. I won't worry about it for now, thank you.Rank is completely irrelevant, mostly a factor of time I think. Often you need to use Frantic (or an extremely excessive level) to get it, which is pretty OP but also makes combat faster win or lose.
I figured as much. I ended up going down to easy just so I could get past her/get her special for the trophy. Maybe when I get better I'll be able to get her on normal.Yeah, her and Rin are rough to beat but they should be as they are positioned in the game as the current two most powerful Shinobi.
Overall though, this series has got itself a new fan, I'm enjoying both these games immensely.