Jujus, masked spirits, are an important part of Nso culture. "Mwakum" was the most powerful of all the jujus, invisible, mysterious and full of magic. Each of the Jujus reside in their own part of the Juju Realm. Other jujus include groups that dance to drums and xylophones. All the while, The JuJus underwent several line-up changes. However, as a part of their commitment, The JuJus were required to tour nationally. Some jujus were restricted to men of a certain age and demanded an initiation fee.