User blog comment:Mr Easter/Could Kuina be tashigi/@comment-2109035-20131214234718/@comment-94.52.242.16-20131215171138

Her real sword is actually a broom and he sent them both to New World to find the All Broom Sea, a dream for every woman. Zoro just got tricked in order to follow his dream and not go with her ther (now he goes with Sanji to All Blue)