might be getting your comics mixed up there. there is a character called michonne who does exactly what you described, but she looks like this:
she is, however, one of the single most bad-ass characters in the entire book, so i can't wait for her to come along. also look up a character called abraham and understand why i was so confused/disappointed by the addition of the dixon brothers.
you might have thought she was japanese though because of this lady, toyota, from
y: the last man:
who is a japanese assassin with a katana blade that winds up getting fucked up by someone who looks a lot
like michonne, agent 355:
comics be
crazy.