[Thankfully, she doesn't take in the wrong way, and she just shrugs in a carefree sort of answer.]

I've just always been interested in martial arts since I was a kid.

[A moment's pause, and she adds:]

And- well, this is kind of embarrassing, but when I was in school, people used to pick on me for being tall and looking different, so I learned to stand up for myself.

[That use to be a sore spot for her, and it still is somewhat, but she's mostly gotten over it. Thanks to Usagi and her other friends, that is.]