Rosa is one of the most talented archers in all of Baron, but she is renowned as much for her peerless beauty as much as for her skills with the bow. Many young men seek Rosa's affections, but it is Cecil with whom she is in love.
Being of noble blood and having a Dragon Knight for a father, however, Rosa is not thought of as a suitable match for Cecil, whose origins and parentage are unknown. Therefore, Rosa has kept her true feelings hidden within her heart.
Moreover, Cain is friendly with all the members of Rosa's family, and Rosa, who also lost her father when she was young, deeply sympathizes with Cain.
Rosa enrolled in the newly-established White Mage Corps, but even this action was prompted by her desire to be close to Cecil. Not much is said of her true powers in white magic at this point.