Rockna Hiragi

One of the main protagonists of the series. Rockna is Mondo's genius friend, whose intentions match Mondo's. She has a special telepathic ability to communicate with monsters. Now her boyfriend Mondo likes drooling over her, but gets jealous if Mondo flirts with other girls causing Rockna to attack him. The first Kanji in Rockna's given name; "Roku (六)," is the same that is used in the Mon Colle Knights title, Roku Mon Tengai Mon Kore Naito (六門天外モンコレナイト). She has a baton like devices which she use for her string or ribbon attack. He is voiced by Horie Yui in the original Japanese version and Brianne Siddal in the English dub.