Fifteen years, huh? Zoro couldn't remember how long ago he'd started training, just that his sword and his dream had come way before everything else. He wasn't even sure when that was, exactly.

"If you were any good," Was his blunt answer to her question. He was smirking, entirely willing to challenge, but found himself holding out on actually following through. "And if there were more of you. Women swordsmen."

As he said, he was curious. A challenge was his own favor, something he searched for or found or stumbled upon by accident. The latter part however had been said on more of a whim than anything. It shouldn't be surprising to come across a woman completely dedicated to her swordsmanship, especially not back home on the Grand Line where dolphins could grow to crush ships or where people turned their whole bodies into swords. But still, Zoro wanted to know. It was an idle curiosity.

Not feeling the need to reciprocate the information the woman gave but wanting to do so anyway, Zoro simply said: "I've mastered Santoryu." It was a combination of multiple disciplines, with one, two, or three swords utilized in different combinations. Zoro wasn't sure if she'd even heard of his technique but he was satisfied leaving his explanation at that.