I got "Ichi - that one with wisdom."

For some reason I wouldn't have pegged you as a Masako or someone with a -ko name at all.
An awful lot of Japanese female names end in -ko -- it's difficult to avoid them. The question is: which 'masa' kanji is it?
Yeah, but there are a few - Mari and Rei are coming to mind. Also Hiromi. :) And other female names ending in -mi.
"Her name is Yoshimi,
she's a black belt in karate.
Workin' for the city
she has to discipline her body.
'Cause she knows that it's demanding
to defeat those evil machines.
I know she can beat them,
oh, Yoshimi."
- Flaming Lips, Yoshimi Battles the Pink Robots