Please Help. I'm in search of a Manga...

To any and all,

I'd appreciate the assistance.

I'm in search of a manga I read nearly a decade and a half ago. Mind you, I was a child then, so there are many things I have forgotten. I don't remember the title of this manga, but I do remember certain detail, such as:
-The illustration is sophisticated and elegant
-There are multiple characters that have certain martial art skill sets
-There is a female character who is skilled at rope dart
-There is a female character who disguises herself as a man.
-I think some of the characters are students, though not all.

I'm nostalgic; I find myself walking down memory lane with only a partial memory. I wish I remembered more.

Thank you.